When they start trying to sell you addiction "self-help" books is when you really have a problem.

Also do business accounts have any kind of benefit besides just being an account for a business lol?

I don't know. Says lower prices but I have yet to see evidence of that using my work's account. If you pay more you can cover more users...as if anyone actually does that. 

Do they do Prime for businesses?

that's basically what it is, it's free if you already have prime.