Personally I don't think there is anything wrong with disagreeing with the way certain people live their lives. It depends on the situation really. I believe in thought projection, mental influence, auras, etc. so yes I do believe those thoughts and feelings can reach the person you're thinking about depending on how deep they are and how close you are to this person. Do I think it's damaging or a mental assault? No, unless that's your intention. What you focus on you'll get more of, though. Say for instance someone you know, care about and even love is doing or has done negative things that are clearly not benefiting themselves, are coming from a place of self loathing, hurting other people, being selfish, mean, destructive, etc. and you dissaprove (and why wouldn't you?) I don't think it's wrong on your part to merely disapprove or even voice your opinion. Since you seem to me more apt to believing that those thoughts can reach the person, and IF it is effecting you (if not then don't bother) I'd try another method. You could instead focus upon how that person could improve in areas lacking, focus on the good aspects, focus on them overcoming obstacles, focus on them behaving better. In a nutshell, yes I believe those thoughts can reach the person but it depends on your intentions whether it's harmful or not. Hope that helps, I don't know if you were wanting legit proof or just opinions, but either way, there is my opinion. If it's not a specific person and you're just talking about a group of people (you're not in contact with) who's lifestyle makes you uncomfortable, then no I can't say it would reach the actual people in a personal way and damage them, just cause you more undue stress.

I believe in short answers, Snow. It's like this, any judgment, we pass on others is a belief of ours mirrored outside in the world. Any kind of judgement, whether upon others or us are conditions we put in front of ourselves. #1 We see bad people getting more money and we blame god, fate or even money for not coming to us, when WE are the ones, good, worthy and all those things. Doing this we unknowingly give our power to get money to gods, fate or money. What's more by hating to observe the money in the wrong(not righteous) company you stop it altogether from coming to you, unless you become bad. Or live broke as long as you're good. Same happens with awesome girls with morons. Your idiot friend with inheritance.

So judgment is really putting up a condition in front of the thing you want for yourself too. And by hating the money at bad guys', you're making it true that only the bad guy can have money or the dirty and dangerous guys can have girls. I mean every time you judge something you make it true for your self. If it isn't true for you why would you hate it. Judgement = Blocking or putting a condition in front of the thing you want or will want later.

And it'll not create any kind of havoc in the lives of people you're judging. In fact because you're judging it and it's true for you, you'll keep seeing it. They'll not change because you hate them being certain ways, they'll stay the same as long as you keep judging them. And when you stop judging, the annoying thing or annoying people will either change or vanish from your truth. Your truth is yours to keep after-all.

You know what Snow I'd really like to edit this answer, because I feel I've not been clear in conveying my thoughts. I'm so tired now, but soon I will.