Trouble is, they don't.
We stumbled across a segment from the Rachel Maddow Show in September, which we thought we'd share. Maddow points out,
...the Koch brothers nearly doubl(ed) their corporate revenues, while decreasing their work force by roughly 20%.Sourcewatch tells us a 2007 report about Koch Industries says the company employed 80,000 people that year. But in their 2011 company description, they say they have 67,000 employees.
Watch the Maddow segment here.