Precisely. Increasing taxation and Minimum Wage on companies is just an excuse to increase prices, not the actual cause. Particularly Minimum Wage, since the very brief loss from having to pay their workers more would be, by an insightful company at least, more than made up for by the fact that people who do Minimum Wage jobs would actually have money to spend and thus significantly increased business. But no, if Minimum Wage is increased they'll simply jack up to the price of everything instead rendering the wage increase moot, and probably by much more than would be required to make up the difference anyway making the wage increase actually end up detrimental. As for taxes it's a twofer, they'll use that as an excuse to jack up prices and then use whatever loophole they can find to avoid having to pay them anyway.
In the end, these companies need not just taxation and wage increases but laws to stop them from just jacking up prices in response and to keep them from pulling up roots and throwing their money into tax shelters. We need changes on a worldwide level, that's the problem. The issue is not the amount of the wages or the taxes but the exploitation that these people have been getting away with for decades with little to nothing being done to to stop them. Why would there be? Politicians and world leaders across the planet are being paid off to ensure that this happens and stays that way, if not get worse.