Sure... Women control the supply of sex, and women want to mate with the top prospects of males in a given network (society, city, social click, ect.) They roughly gauge the rank of males based on wealth and status (correlated but not a 1:1). As a network gets larger it becomes more efficient and produces more goods (wealth for everyone) but due to the power law of the universe (the square root of the participants in any system do half the total work) in effect a narrowing of the % of males doing the majority of the work. For example a small town of 10,000: 100 males (square root of 10,000) will be doing half the work and will be considered desirable. In a city of 1,000,000 that square root drops down to 1,000. So the "wealth" disparity increases for the males in a given system as the system grows.