Being nice is actually good, but it bites back in the butt. It has bitten me on steemit where I started a group called @steem-lagos and out of the blue the people I was nice to and call brothers bites me in the back. Check my earnings, i hardly earn something encouraging and all this happened to me out of being nice.
It all depends on who you choose to be nice to. If you are nice to a person who believes in fairness and reciprocity then it could help but if you're nice to a person who isn't nice back then perhaps it's time you stop being nice to that kind of person.
Yes Yes, wrong people to be nice to indeed!