Yes it is .. On the other hand it demonstrates how broken the system is. You end up with a guy who in most other countries would be either rotting in jail or an asylum for the insane.
I am not sure how many of your presidents would really have been motivated by higher goals. I thought Bernie Sanders sounded convincing but Hillary Clinton looks just like your average power freak a la Thatcher. Bush junior? Ronny?

I don't think many get into politics for a higher service. See a lot of greed all over the place. Those that do actually care get eaten alive.

And because he thought it would be an easy job. Well, for him it's easy because he's not doing a lot of things he should be doing. Sitting around watching Fox all day isn't his job. I still can't believe he has people who think he's doing a good job.