Sure. People who are born into the middle class are certainly better off than people born into poverty. That still doesn't make them rich kids. Three of your factors are true for virtually everyone in America. One is pure luck unrelated from wealth. And the other two are just good parenting.

Tech is a very middle class profession. Much more middle class than most high paying professions like Medicine, Law, Executives, Consultants, Banking, etc.

And most people who would call someone a rich kid were born just as middle class (or even better).