This is not surprising This is who these politicians are. They are the people in school who wanted to be class president, the kids who always stayed with the teachers during lunch and other breaks. Most normal people want to go home after work, and be left alone with their family, but a small percentage of people have psychopathic traits, where they want to control others, and have "power", so they spend their free time fooling others into giving them trust, with a goal of getting into some position of power. In politics it's called campaigning.
Here is an article from "The Atlantic" discussing Ryan's brown-nosing past.
This is a good video of Gerald Celente touching on this subject, and the nature of politics in general.