Whatever a person did in the past, surely, it will come back to him/her in the same way or in the other way (in his/her present life or future). Whether it is good or bad, everything will have its result in no time. But for as long as he/she is happy that’s all that matters. Whether other people are being trampled with his/her happiness, there is nothing to worry about. Besides those people who are being hurt will have their own happiness if not at these times but it will be in the future.
So, it’s good that we will do nice and good things not just for ourselves today but also for all the people. As what the golden rule says, “Do unto others what you want others would do unto you”!