what do people get out of non-sexual bdsm?

I grew up in a very sheltered and controlled environment, but now I’m free and learning more about non-traditional relationships and sexual practices.

I know BDSM as a kink is appealing due to the exchange in power and control, but what do people who practice non-sexual bdsm get out of it? Like, I understand being in a sadist-masochist dynamic to reach sexual gratification, but why would someone participate in that if not to orgasm?

I want to learn how to not judge others for something I don’t understand, and how to not to judge myself for being interested in something very different than what I was taught to want in a sexual relationship. Any notes or advice is greatly appreciated.