You actually are. You invest your time. Time is a valuable capital not unlike any other.
Oh, and also, you own your account. I see your account is now worth about 10 USD, so yes, you own about 10 dollars worth of the blockchain. It's your own capital, capitalist.
Addendum:
And yes, you do benefit from others' work each and any time someone upvotes your posts. It is their own capital (their work) that makes it possible for you to earn rewards.
Again fuck the fuck off u cunt
I'll "fuck off" when you start behaving.