Living life to the fullest and enjoying seems a bit selfish
But you suffering also, because they are, won't help them either right?
Newton and Einstein, others like them were/are just normal people like everyone else but they made something happen, took action, got some good results and probably got lucky to some degree also. They failed too though. Isaac Newton's investment failures were catastrophic and legendary for instance.
We all can make a difference to our own lives and I think that's a good place to start. Eventually no one will even know we existed but we exist now and I'd say that's a good reason to make something happen in our own lives.
I really like your positivity. I agree with a lot of what you've said and I hope I can act on it.
If you're thinking the right way, your attitude and actions will follow, usually. Good luck.