Being the best human can be is not selfish, self-centered pursuit because for me I play sports and me working hard and pursuing quality can make me be a role model for a young individual. It's hard to imagine that a person without a good quality of life becoming a role model for a younger generation.

Achieving your goal can have an effect on other people giving yourself pleasure and the individuals you have an effect on. Example would be if you build this big organization and it helped for a good cause you can have pleasure by helping people with your organization and the certain individual can can gain happiness from being helped. 

Meeting your goal should be something you should celebrate and feel good about because you work hard to get a good quality of life and helping people in the process you should be really proud of that if that makes you the happiest person in the world. 

Is pursuing quality of life the same thing as happiness? If you ask me I will say yes as a athlete it gives me happiness that someone is recognizing my hard work and determination to get out and do better each time I compete. People that sees that and can be inspired giving them pleasure to go out and work hard everyday.