Taxation is only one of possible solutions. Governments could tax the wealthy capital owners and redistribute income to workers, but that is not the direction societies are moving in. Workers need to own capital rather than rely on government income redistribution policies. Oxford study estimates, about 47% of total employment in developed world is at risk of computerization in next three decades. As companies substitute machines and computers for human activity, workers need to own part of the capital stock that substitutes for them to benefit from these new “robot” technologies. Workers could own shares of the firm, hold stock options, or be paid in part from the profits. Without ownership stakes, workers will become serfs working on behalf of the robots’ overlords. This way workers would also get influence on company's policy. As for the markets go, I would strictly implement Volcker Rule, building separation between investment banking and classic banks. Let Deutsche Banks, Goldman Sachses etc of the world play only with investors money not ordinary people's deposits, so they won't be too big to fail if they become insolvent. Of course that will never happen as nearly every legislator is on their payroll in one way or another.