There's no point living to 100 if you're not lifting weights. Loss of muscle takes away from your quality of life. It makes easy things harder. If you intend to live long please lift weights. Better to be the oldest person in the gym than the youngest in the nursing home.
You want to get rich?
The greatest lie ever told was that you get rich with salary.
You get rich with equity. You get rich owning things. There are two classes in the world the ownership class and the permanent underclass. The entire game is getting into the right class.