If private businesses had government in their pocket, they'd be allowed to be in charge of money creation, they'd recieve multi trillion dollor bailouts that the rest of society has to pay back, they'd have their people placed at the top of govenrment agencies that regulated their businesses, they'd have laws passed to suit their goals and hinder competition and would have legions of lobbyists chucking wheel barrows of cash at senators from their K street rat holes, oh wait.......
There fixed that for you.
I'm not pro or anti unions but they do create more strength/leverage than an individual could on his own, for good or bad.