Studies of mate selection in dozens of countries around the world have found men and women report prioritizing different traits when it comes to choosing a mate, with men tending to prefer women who are young and attractive and women tending to prefer men who are rich, well-educated, ambitious, and attractive. Evolutionary psychologists contend this is an inherent sex difference arising out of sexual selection, with men driven to seek women who will give birth to healthy babies and women driven to seek men who will be able to provide the necessary resources for the family’s survival.

Townsend (1989) surveyed medical students regarding their perception of how the availability of marriage partners changed as their educational careers advanced. Eighty-five percent of the women indicated that “As my status increases, my pool of acceptable partners decreases.” In contrast, 90 percent of men felt that “As my status increases, my pool of acceptable partners increases.

Gilles Saint-Paul (2008) argued that, based on mathematical models, human female hypergamy occurs because women have greater lost mating opportunity costs from monogamous mating (given their slower reproductive rate and limited window of fertility), and thus must be compensated for this cost of marriage. Marriage reduces the overall genetic quality of her offspring by precluding the possibility of impregnation by a genetically higher quality male, albeit without his parental investment. However, this reduction may be compensated by greater levels of parental investment by her genetically lower quality husband.

An empirical study examined the mate preferences of subscribers to a computer dating service in Israel that had a highly skewed sex ratio (646 men for 1,000 women). Despite this skewed sex ratio, they found that “On education and socioeconomic status, women on average express greater hypergamic selectivity; they prefer mates who are superior to them in these traits… while men express a desire for an analogue of hypergamy based on physical attractiveness; they desire a mate who ranks higher on the physical attractiveness scale than they themselves do.

https://en.m.wikipedia.org/wiki/Hypergamy

Its just simple biology, mate.