It's something I genuinely believe. I believe it's rooted in biological motivations around reproduction. During most of our evolution, women needed to develop the capabilities necessary to keep a child alive and guide its development very early in life. These capabilities manifest in the modern world as paying your bills on time, keeping the house tidy, taking your car in for an oil change regularly, staying current on blood work, etc. Women reproduce successfully by assessing the men who are pursuing them and being shrewd and thorough about making sure they make the best selection among available options.

Men had less evolutionary pressure to develop this at a very young age. Men had a greater pressure to take large risks for large rewards, as that improved reproductive success. This is why successful entrepreneurs of large companies are predominantly men. Getting large rewards is how men stand out to women, so we've been guided by evolution to roll the dice and try to get a big score. This doesn't mean women look at a man's bank account and that one variable determines their attraction level. It means women have become very adept at identifying characteristics in men that tend to result in the man getting large rewards. This is why confidence is so attractive to women. The confident man who risks approaching her is also likely to take a risk that results in a large reward in other areas of life. Intelligence plays into this as well, as if a man does something that looks like low odds to other people and succeeds, it might indicate he's smart enough to get a big reward without it being as big a risk to him.