Not chump change by any means, but skilled engineers in Silicon Valley can easily make $250K/year in total compensation. If a startup takes about 3 years of ramen wages to come to fruition and then the founders are locked up for another year while they vest, the plain old employee will have made about $1M in the time that the startup founder made maybe $2.5M. Startup founder is still ahead, but they took on all the risk of their startup failing and them getting nothing, and the difference is only about a factor of 2 instead of an order of magnitude.