Well, it shouldn't be. There's nothing wrong with people having money. And of course people who have more money will have an easier time with... pretty much everything in life. It's the nature of money.

But this would give an alternative to people wanting to advertise their work but not wanting to use the vote bots.

It'd be a risk, but advertising in the real world is always a risk: you spend money on advertising without a complete guarantee of returns.

That's just business.