There's no real such thing as a "natural" chicken, but their ancestors, red junglefowl, are similar. In fact, healthier females produce more males (https://academic.oup.com/auk/article/119/3/840/5561973). Perhaps it's evolutionary turned out to be good for fitness of the species if 90% of the males are killed by other males or otherwise don't mate and that outweighs "wasting" 4.5/10 eggs. Nature doesn't "care" (yes, yes, active verb for non-conscious process) if it's pretty, just that it works.

In general, life in nature just ain't that fun as a junior member of an r-selected species, which includes chickens.