Considering the fact the doing good will not earn you anything in anyway and that if you are not a millionaire or billionaire your good acts won’t matter at all.
What’s the point?
I had seen with my own eyes good people being manipulated and fucked because they did something good, on the other hand it’s pretty rare for evil people to face any consequences.
Why should I restrict my free hands with ethics and why should I think about it?
Just a note: I am a deist, so I don’t believe that doing good will get you anything in the after life.
You might enjoy this video: https://www.youtube.com/watch?v=mScpHTIi-kM
TLDR: The optimal strategy, even if its just for your self interest is to: Be nice, but don’t be a pushover. If someone done you wrong, retalitate (proportional to what they did).