I think it is better for societies if no one dominates forever.
What better reward than to see others excited by your work?
Do you know what the costliest phrase in technology is? 'It will work because it would be cool if it did.'
All I have is an opinion - I don't deal in Truth.
Adults tend to repress their pleasure. Sad to say, I think we become adults only through disappointment, grief, and lies. So of course gradually we become tough, less sensitive.
But as you say in English, c'est la vie!