You are right. However, not knowing successful entrepreneurs (while being able to name 20 different rappers) is not unique to black high schoolers, so it's up to the mentor to create motivation and make these stories known, e.g. take them to the Social Network movie and explain that that guy in the hoodie is now worth billions, much more than Jay Z.

I don't know about the misguided part, but it's definitely not easier said than done, a lot of people are doing it (although juggling work and a kid is demanding). The response I'm getting from the kids is just awesome.

So, for ordinary engineers like me, the solution is simple: mentor those who you think are underrepresented.

BTW: it's a pity that in FIRST girls around encouraged much, most teams are more than 95% boys.