$250K is far too much to allow anyone to keep; nobody needs that much money to get by. There is no reason as to why somebody needs a big house with a garage full of new cars and caviar for dinner every night. Plenty of families do just fine on $50K per year, and others exist on much less than that.
Thus, if we re-run Williams' numbers using $50K as the baseline rather than $250K, we can pay for the big govt that we all need to survive. And companies can all be nationalized, which means their profits can all be contributed to the govt without having greedy fatcats skimming huge profits to fund their Learjets and mansions.
The solution is there, we just have to take control for the sake of the collective.