And how to do that ?
I would leave them alone, let them see what you do maybe, show them minecraft. But don't expect them to magically take to it.
When I was a kid I gained my interest in computers from seeing my Grandfather building a computer, my sister was there when he was building it. Yet I kept to it and she pursued other endeavors.
Seems like encouraging children to follow an interest that could lead them to wealth through work isn't a bad thing?
Furthermore, if they only see it as a path to money and not an end in itself to construct great, helpful, beautiful programs, they're gonna burn out real quick.
Also, "having money" as a goal is just somehow repulsive. Seemingly all the sleazeballs of the world are oriented like this, and as a result they tend to be very shady and use people as means to getting money rather than actually people, with whom meaningful relationships can be forged.
Just get excited and show enthusiasm, if you're genuinely excited about it, then it's contagious and kids pick up on that.