Does Batgirl really think corporations aren't currently under any 'rules'(we call them regulations in the pesky business world, batgirl)? What about economic 'rules' that already play roles in supply and demand and determine cost, supply of materials/labor, competition(ooh, bad word at DU), whether disposable income is available or not to spend, etc etc.
Something tells me these geniuses would also be terribly pissed when all these businesses picked up operations and left the country or mass laid off people when their '10-15%' of profit rules went into effect. Not to mention DAT's point which if you read into it basically would stifle competition and encourage their dreaded 'big' business more since that's the only ones that will survive in their '10-15%' of profits world.