@Jim K.
Solid question. I'm not sure why you're getting some of the strange responses that you are. (I saw someone say "it sounds like you have deeper issues going on"?). Sorry about those. Very inconsiderate on their part.
Personally, I know you don't have to get your hands dirty to get ahead in real estate. If you lay out your contracts clearly so that everyone knows their responsibilities, and you attempt to come to fair (yet firm) compromises when appropriate, you don't have to get your hands dirty. Not overextending yourself is helpful as well, because it's when people feel backed into a corner that they're more likely to act poorly. At least, on the whole.
In the town I grew up there were rentals with dirt floors, which was only discovered and reported when a census agent knocked on the door. There was another landlord who would evict people by throwing all their stuff on the curb, but keep the baby pictures and only give those back when all the fees he charged were paid back. Those landlords got their hands dirty, and I hate to say it but they did get rich. But you don't have to do those things, and you shouldn't.
Anyway, thanks for asking a good question.