[ativzzz]

> I know a lot of good developers and people who can sell themselves really well. Sadly, these two groups hardly overlap.

Because the best marketers and salespeople are plainly people who lie. People who lie about the capability of the product they are selling to get their customer to buy more of it. Good marketers and salespeople cripple their financial gain by being truthful. So liars get more money, so they get more customers, so they get more power. So it goes.

Software development, being somewhere between a craft, an art, and a science, is fundamentally grounded in truth. You can't bullshit your way to quality software. You can't lie to the computer like you can to a human (maybe with AI you can). So "success" in these two fields is diametrically different.

Though I bet you'll get the opposite answer on a sales/marketing forum.