Prize money has virtually nothing to do with earnings. Navi wins less, so obviously prize money is less. Astralis has won a lot, so prize money won is a lot. His major earning is because of his popularity, which gets him lots of sponsors. His brand endorsements for AMD Ryzen, Logitech, other famous gaming brands, earns him a lot of money. His salary should be around 30K-50K per month, in addition to ads, brand endorsements, and businesses.