Would a good example be:
Something bothers the INFP and INFJ.
The INFP thinks: 'It'd be great if something could be done about that'
The INFJ thinks: 'I wonder what I could do about that'
By the way, that list is epic XD It feels like a lot of thought went into it
Thanks hun!
I think the better way to look at the differences would be to put them both in a situation. Let's say an INFP and an INFJ are at a carnival when they realize they got hoodwinked at a carnival game...
Someone asks an INFP and an INFJ what the problem is.
The INFP says "I was cheated!" (Self focused issue)
The INFJ says "This is unfair!" (Global issue)
Someone asks what about the issue is bothering an INFP and an INFJ.
The INFP says "This, this, this, and that..." (Very specific answer)
The INFJ says "Um, well, it's like, um, they did this thing and like..." (Hard time explaining)
Someone asks why the issue is bothering an INFP and an INFJ.
The INFP says "Because it just does!" (Hard time explaining)
The INFJ says "Because it is wrong!" (Very specific answer)
Someone asks an INFP and an INFJ what should be done about it.
The INFP says "I want my money back!" (Self solution based on situation)
The INFJ says "People shouldn't be allowed to do that to other people!" (Community solution based on rules)
I hope that helps make it more clear... seems like it might not.