Utilitarianism seems to be based on personal gain or positive / negative emotion.
Why help others? It makes you feel good, or it makes the world a better place which may benefit you with good feeling later on.
Why work hard? Makes you feel accomplished. Earns you money or accomplishment which may later make you feel good.
Why not kill people? Makes you feel bad, or puts you in prison which will cause you bad feelings as time passes.
The philosophy, to my limited knowledge, determines how to treat others based on personal gain either by full-circle chain reaction or by immediate emotional responses (feeling good, feeling bad), but this seems like a selfish and subjective motive for things.
Is there a philosophy that determines why we should do things based on a deeper reasoning for acting than feelings or personal gain?
For example, a philosophy about
doing things to be remembered as a great person?
acting simply because it would be a waste of potential not to?
or any other reason not based on personal gain or feelings?
What we want and our feelings are the most common motivator for us, and I surely dont claim to be above that kind of motivation, but I don't feel that it's a very high level of thought. It seems to be selfish idealism, and while difficult to ignore the wants of our human nature, it's appealing to me to think beyond selfishnessness if possible. I'm just wondering what philosophers have said about this.