U r actually completelly wrong.
First, the definition of "having a purpose" is "to have an intended or desired result; end; aim; goal; determination; resoluteness", it CAN be "activism and fight for the betterment of everyone", but here u messed things around, thats pretty much what u did in every single reply u gave me. Activism and fight for the betterment of everyone arent the same thing neither move together. Anyway, it DOESNT have to be it, one more time, it DOESNT HAVE TO BE IT. Me, you, people in general doesnt have to pursue a purpose in life related to "some kind of activism and fight for the betterment of everyone".
Second, I never said we need to ignore and do nothing about the bigger problems of our society as u intended, pretty much the opposite, we need to DO more, be LESS histerical/alarmist/apocalyptic in our discourses and DO more, be more active and less talkative.
Third, im not unethical neither inhumane for focusing more on my own life than on the lives of everyone else lmfao, what kind of dumb and deturped way of thinking is that, are u what? 15 years old? Wont even extend myself on that one rofl. Have a good night, brother