1) Wu Xin is a prideful little shit. And knows he's important, so yes, thinks he's important. Hence he does think he's more important than the average man, although that doesn't mean he disregards the average person. He values life the same for everyone... But outside of living and dying, the rest are not necessary the same.
5) he's the most non materialistic person I know. The whole monk thing is completely valid here. So he actually doesn't have a physical thing he wants. Greed for material desires is not one of his downfalls.
not sure he'll do things he will regret. If he does something, he follows his heart to do it and will have no regrets. That is same for love and probably sex too... The whole monk thing won't stop him there. He'll just stop being a monk. XD
11) hard work gets rewards! But also there are some people who just are born lucky or have good fates. Karma, the good deeds of previous lives, etc etc. Everything is a word of fate.
15) Uh.... Martial arts learning. He'd sponge that all up and go for more? He's a pretty good one for restraint actually, so trying to figure out what he gluts on is challenging. Not on food or drinking, no bad hobbies... Given, his version of restraint mighty not follow the norm or what's expected, but he's got his own lines that he doesn't cross.
15) All the ones he gets angry at definitely deserved it. The closest was when someone poked at his father's death and he went off pummeling them. But even then, he was fair. Fisticuffs with no martial arts because they couldn't use martial arts. Only time I've seen him really angry really. But that would definitely be a 'foolish' moment.
Unless you count deciding to go jaunting across the country with practically every source of power in the world wanting him for reason or another... But that's not really due to rage. That was a (not well) planned thing with reasons.
21) probably the task that got him landed on the barge on the first place. Lol. He's avoiding it so much that he needs to get himself redeemed for so that he's done in order to not do it.... Definitely putting it off.