If you're an actor your face determines the kind of roles you play. The audience has an expectation about you based on the way you look and it's best not to disappoint them. I've often wondered if ordinary people in the real world should do what actors do, and sculpt their personalities and vocational aspirations to fit the way they look.
By way of example, the guy on the upper right (above) should clearly be a drug dealer. If he's an honest and drug-free man then that's unfortunate because nature has clearly chosen a different path for him and he'll never be happy as long as he's living a conflicted life. The guy in the middle of the second row (above) should obviously run a news stand and sell newspapers. Don't feel sorry for him because he'll make more money than you do. Customers will go out of their way to buy newspapers from a man who fits their image of what a newsie should look like.
Some people like the woman in the middle row above are cursed with a bland face. It's as if they have fewer facial muscles than everybody else. People like this are said to make good spies because they don't stand out in a crowd. Once again, don't feel sorry for these people because an inexpressive but pleasant face is deemed to be dependable and trustworthy and employers like that.
Employers don't like faces like these. They look like they're riddled with eccentricities and neuroses. if you look like these people you should put a lot of effort into finding a way to be self-employed.