The role of politicians is to make decisions for lots of other people. If you strive for this position, you probably have no problem with (violently) imposing your will on other people. If you do have a problem with this, and realize what your job description consists of, you'd do best to drop the race immediately to avoid spiritual distress.
Being successful in being elected has very little to do with being a good ruler. Rather, being able to skillfully hide negative things while highlighting (at least superficially) positive effects (credit expansion, anyone?) and pandering to special "groups" to provide them with benefits seem to be imperative. These benefits disproportionately turn into "welfare for the rich"; the ordinary man isn't nearly as capable of lobbying for his own interests as more affluent special interests. Candidates reluctant to accepting corporate money will tend to be out-competed by others with less integrity, since money is indeed vital for a successful campaign.
The importance of unrealistic rhetoric shouldn't be underestimated, either. If you tell a realistic story, while competitors slip in a few lies to make their story a lot brighter, you've got trouble on your hands. People hear what they want to hear, if they reasonably justify, at least to a limited extent, a naive but positive belief, they tend to take it as truth. Unadulterated truth doesn't stand a chance against a web of interwoven facts and feel-good lies.
Getting far up into the power hierarchy without being viewed in a favorable light by the pre-existing "establishment" seems like quite the task, too. This is probably the reason that change is so hard to come by.
No. I tend to not trust an institution funded mainly by coercion, ruled by "fixers" who think themselves fit to control others without their consent (plus, institutional factors favor folks liable to lie and accept bribes for these jobs).
I did however check the military box, although reluctantly. Mostly due to the fact that it barely engages in any operations at all, and wars close to home seem very unlikely. But, unfortunately, we do participate with a couple of hundred soldiers in some countries, which sucks.