The short answer is, there's no way to know for sure the underlined. You just have to be honest and use a little common sense, which is the hard part.
For example, the NFL has a rule where they have to interview minority coaches when looking to fill a position. The league has been majority black for decades, yet 90%+ of its coaches were white until a couple of years ago. Of course, owners and managers swore up and down that they always chose the best and most qualified and had no biases but it just makes little sense that so many black people could be interested enough in the sport to become players at the highest levels, yet so few had the interest or capacity to be coaches (unless you're an old school racist that thinks blacks just don't have the intelligence or leadership capacity to be coaches, in which case this whole conversation is moot).
The same idea applies for other fields as well. Currently, the nonwhite population under the age of about 40 is something like 35%, and higher in the big cities. So if the management of a big company is 90% white males, that tells you something else is at play and should be addressed. This isn't the 1930s anymore when only white guys had the necessary qualifications for professional jobs.