Can someone explain to me the need to be represented?

I think it's important for someone to see representation of themselves in a positive light. This example of in the media is probably the most relevant, but I think it's important to see people you identify with doing things that you might want to do i.e. politics, science, art, etc. I think this, because, when someone sees all the successful people they aspire to be like and can't relate to them on some fundamental levels they may give up or lose hope on their dreams because of something they can't, and shouldn't want to, change.

Just my opinion, and why I wish I saw more well known LGBTQ+ physicists and engineers.