Well, they used to before their ladies started banking big checks and monogamy took hold, according to a new study published in the peer-reviewed journal Evolutionary Psychology.

On June 8, Daniel Kruger, PhD, assistant research professor at the University of Michigan School of Public Health told LiveScience, a science news site, "The name of the game in evolution is to get your genes in the next generation."

Kruger analyzed why men die first and found it has everything to do with sex. 

Since, "mating competition is responsible for excess male mortality, then the more mating competition there is, the higher excess male mortality will be," he said in a release.

To win the favor of ladies and get the sex, money comes into play and Kruger suggests "The wider the gap between rich and poor, the more likely men are to die young."

Alpha males may continue to pass their seed driven by sex on, but it is likely that it is lessening as "the more egalitarian a society, and the more devoted to monogamy, the less extreme the risk taking. But no human culture, is perfectly free of such competition." http://www.epjournal.net/admin/www.epjournal.net/filestore/ep08194204.pdf