Sure, there's debate about pro's and con's of corporate consolidation and market failures surrounding monopolies and oligopolies. But, with the increase in connectivity between regions via telecom, internet, mobile, etc; wouldn't there be an expectation of increased economies of scale from more frictionless communication?
If we note increased economies from scale for companies, it would naturally follow a CEO's wage would rise given the weight CEO's decisions when compared to results of company and number of workers affected. The CEO of walmart vs the CEO of 5 general stores would obviously change.
All I'm noting is that perhaps this is downstream of consolidation and that's the pertinent discussion, not deciding on socialism/revolution.