That's a interesting theory Zir!
I'm trying to think right now of all the actresses who have starred in movies with Ford and for the most part they've all fell into relative obscurity. Carrie Fisher, Karen Allen, Sean Young, Anne Archer, Kelly McGillis, Kate Capshaw, Julia Ormond, Melanie Griffith, Alison Doody, Bonnie Bedelia, and Sela Ward all have not remained in the mainstream public eye. Their careers all lapsed and or are trying to make comebacks.
The only ones to still be pretty prominent are Sigourney Weaver(on TV I think), Annete Benning, Virginia Madsen, Anne Heche(TV), Michelle Pfieffer, and of course Helen Mirren(recent oscar for The Queen).
Maybe Count Harrison did devour their talent? lol!