With the exception of the National Basketball Association, males of European ancestry (white men) dominate to this day school administrations (public and private), publishing houses, movie studios and distribution companies, television networks (including cable companies), radio station holding companies, art museum boards and curatorial staffs, recording studios and the companies that produce and distribute music in all its forms, and even the companies that dominate the internet, from the companies that give us connection to it to the companies that support it with advertising and electronic commerce. We "find" what they want us to find.
We find a great deal more today than we did when I was in school. But we are 143 years since the Emancipation Proclamation and only now is this nation seeing serious candidacy of people who are not white men for the office of President. We have a Congress dominated by white men, and most state governments are lead by and otherwise dominated by white men.
It is folly to believe that this is cream rising to the top. There are as many incompetent white men pro rata as there are incompetent members of any other segment of the population. Yet they continue to occupy disproportionately the roles of power and control of access.
It is not accidental.