> high value PhD's https://www.reference.com/education/percentage-americans-phd-2508f1120884e2a3 https://www.reference.com/education/percentage-americans-phd..

> high value PhD's https://www.reference.com/education/percentage-americans-phd-2508f1120884e2a3 https://www.reference.com/education/percentage-americans-phd... says: "According to U.S. Census 2013 data, 1.68 percent of Americans over the age of 25 have a PhD. [...] [Adding in medical doctors], the total percent of Americans referred to as doctors equal to 3.16 percent." I'm guessing only a small part of those will be what you would call "high value", so I don't think there's enough there to shift the statistics in the way you say.