Mythopoet
Auror
(did you know certain knights financed the Crusades by kidnapping people and holding them for ransom?)
Did you know that in every place and period of history, there were bad people who did bad things?
Seriously, it seems like you've got a very specific picture in your mind of feudalism means that is not representative of the thing as a whole. And also like most people you're probably judging feudal times by your own modern sensibilities. Medieval peasant weren't all miserable slaves living in squalor, like the modern myth insists. Were some peasants miserable? Sure. There are miserable people everywhere in every time. There are powerful people who take advantage of less powerful people everywhere in every time. You don't judge a whole system by it's worst offenders.