"Once a society gets above the level of mere subsistence, culture is pretty much the entire point of human existence." One sentence so simple, yet poignantly stated. Art, is our testimony to the future that we've made an impact in the millisecond of time on Earth. Whether, that impact is substantive or not knows. Ebert his genius was his ability to critique works as complex Stanley Kubricks "Eyes Wide Shut" and analyze the work fully while at the same time reviewing a piece like South Park Bigger badder and Uncut and give it the same standard of attention and respect of process.
Corporations are just like Congress they swap out the incompetent moron every few years or so, but the people pulling the strings are still around. Also just like Congress the Directors answer to Billionaire smucks who want them to vote a certain way, so they can keep their jobs.