My Uncle was fairly rich, had a big 3 story house with a slot machine, huge ass TV, pool, hot tub, and all kinds of cool shit. I never hated him or anything for it though, if anything I am grateful because a lot of my childhood was spent there gaming on his huge ass TV and shit. Besides him I never personally knew anybody who was wealthy.
Lately my other uncle on the other side of family died, apparently there was some thing where he divorced his wife and became a loner, his wife got pissed and spread rumors about him and stuff and the daughter therefore ended up hating him. So when he died instead of taking responsibility the daughter took all the money and left the funeral responsibilities to my grandma, who is too old to do anything so it of course got pushed onto my mom.