I guess I don't see it as manipulative. It's not forcing people to do anything, but simply using what you have to shed light on issues that are harming humanity or the earth. People do that all the time though through art - with movies, or lyrics, or paintings, to share their opinion and beliefs with the world.
I just went by the way you wrote it, your choice of words implied manipulation. But it's mostly guesswork anyway. A medium is always more subtle, too subtle for some. But it allows you to make up your own mind, while sharing your point of view. Stana did say that she wants to show her characters as more environmentally aware, and display a different way of dealing with it. There are just those that don't notice this. There is a good and bad way to go about raising awareness. What she does is shifting the focus from people with money towards smarter people (that need money and influence to do something), opening a channel of communication between the two.
What do you mean by weighing Fe? And a Fe-dom isn't likely to make these pictures as in pictures of quotes that motivate them or the vibe of her Instagram pictures in general?
The pictures and Fe-dom would make are more like selfies, highlighting themselves more than the artistic value behind them. They would use the art to highlight themselves, rather than authentically shining through the art they want to put into the foreground. See for example the picture of the coffee cups, or the picture she shared of David Bowie. Especially the one with the old person (I'm working from memory here, I don't remember the gender). She expressed herself through the art and did not present an enforced image of herself through the picture (fake because she directed the perspective the observer is supposed to have of her). See what I mean to differentiate?
I never realized that "spacing out/looking away" when thinking/mulling over something is a sign of Ti being in the lower half of the stack. I always thought it was a natural thing for people to break eye contact when thinking hard about something.
Compared to a Ti-aux ENTP I observed I suppose it is so. Perhaps it is the Ni-Ti combination, more than Ti by itself. I have never seen that Ne-Ti person look into himself to form his answer, it only comes straight out, he thinks while he is talking. Sometimes it seems like he isn't consciously thinking, but talking without thinking, only he must obviously be thinking so the things that do come out come out.
Let's assume for a moment that it is so, and go through the situation, from input to output. Ni represents the information input and information order(ing). Next would be Fe, which is an information exchange, taking in further information from outside, which boils down to taking in the atmosphere of the environment. In order to order my thoughts for the Se output, without being rushed or influenced by my environment, I'd have to retreat into myself, which would look to the outside world like "looking inside", to fully concentrate on Ti. And Ti takes information out of the Ni ordered-information-repository, only it isn't particularly ordered, but needs to be re-ordered for a comprehensible answer. And even then, I'd often start talking too soon, talking as soon as I have a picture of the answer, but I haven't thought of the words yet which will make up the answer. This is why occasionally I stop talking because I don't have the word ready for utterance which would perfectly suit the expression of that particular thought or image. This is where Fe likes to step in and raise my level of nervousness because I am taking too long to say something. Long story short, I get flustered, rummaging in my head for words, which are then not always the right ones if I let myself be influenced and rushed by Fe. This is why I think Ti is a function that is not always at the ready for us. We sometimes have to look inside for the right words, because we know: words have power, we want to express ourselves authentically and (therefore) need the perfect words.
It may be that thinking hard is also a cause for introspection. But for an INFJ it is not the only cause for introspection. I don't know exactly how it is for other types, I can only guess. For INFJ, I believe it's a motivation to express integrity towards their inner world, because our inner world so complex and highly nouanced that it is close to impossible to make it known.