From the fact that you can get profit by removing waste. Without profit there is no reason to remove waste. Waste isn't a thing you add intentionally if you have a reason. Waste is entropy it happens unless you continually clean it out. If you don't HAVE to clean out the waste it doesn't get cleaned out.

Your definition of waste is likely different to other peoples.

Seems like a good one to me. I suppose there are more blatant forms of waste and raw corruption, but the entropy kind seems like one of the most important for a society to tackle.

You also apparently need to wipe out the profit occasionally or else the company gets sucked dry of functional capability out of greed.

Perhaps we need a cycle of allowing capitalists to remove waste, nationalization to remove profit, and then capitalists to be allowed to begin again removing waste.