It's either they're finding you somehow too nice and they haven't been around enough nice people and find that threatening...or, you are doing the things you're being accused of but not consciously. Some people think they're very friendly and warm but if you ask an acquaintance they might disagree with this person's assessment. It's all about perspective. Or, you might truly be a very nice person who hasn't done anything wrong but are living in a toxic environment surrounded by people who have nothing better to do than focus their attention on you-for better or for worse.
It's not really about changing destiny but more about changing how you view yourself and your environment. If the people around you hurt you with these accusations, it may be time to find other people to become friends with. This can be difficult, especially if you've known these people for a really long time, but if they're doing more harm than good then why continue hurting yourself?
"Change what can be changed, work around everything else"
Like the above quote, it may also be time to reassess how you interact with others. Believe me, I'm a nice person too and that niceness gets taken advantage of all the time because people mistake niceness for weakness. But I've learned being nice to everyone can definitely backfire as well. If you're nice to everyone, that means you're nice to someone's enemy, most likely without even realizing it. So you just being a good person in the first place could be triggering some of these accusations, but I wouldn't consider that your fault-it's whoever's fault that can't handle you being a neutral, pleasant person.
Finally, don't assume anything. Don't assume people are 'punishing' you when they could very well be taking out their anger about someone else on you...just because you happen to be the closest warm body. Don't assume they're directly targeting you. Another thing I've learned is that nobody spends their entire life thinking about other people. Humans are inherently selfish and don't devote 24 hours a day to dwell on that one incident in the lounge between Jen and Michelle. In actuality, they're dwelling on what happened to them because that's how humans think. Generally, if you begin to think everyone is targeting you and accusing you of things, that aura spreads and other people will begin to believe it too, even if it's not true. If you're doing your best to be a good person, that's all you need to do. Like that darn Disney movie, just let it go. Let things go or else they're going to end up controlling your life before you even realize it's happening.
Some people might find this a little stupid, but this is my little motto: Just do what you can. Everything else will fall into place :)