Why not?
I increase weight and duration to be able to do more or go longer than than other people which brings feelings of accomplishment. It also brings all the benefits you describe. You don’t HAVE to compete, but that doesn’t mean that people who do compete are just victims of the patriarchy, that’s an absurd take.
It’s almost like we can all do things for different reasons and you don’t have a monopoly on why people should do a thing.
Take me down your line of thought because I don’t see how Occam’s razor applies. Everyone likes to be perceived as attractive or MORE attractive. It’s not just women who take GLP-1s or get plastic surgery. And it’s not just ugly people or pretty people, it’s everybody. It’s nicer to be desirable by popular standards than not. That’s not the patriarchy, that’s comparative evaluation for mate selection.
And if you’re not into that it’s fine, but everyone likes to be viewed as attractive.
I find the “bruh it’s the patriarchy” to be, frankly, pretty fucking dumb.
That strikes me as a super cop out. People just like to be noticed and recognized and the more of it you have, the more of it you want, just like wealth.
I don’t go to the gym because of unrealistic male body standards, I do it because it feels good to be noticed even after you’ve got kids and you’re happily married. It feels good to win and it feels bad to lose but if you have to lose at least you can crab bucket?
People who don’t like hit songs by the village people?