That's an essential point you make, Rich. It is the Pro Football Hall of Fame, not the Football Players Hall of Fame. But what rules in the end is cognitive bias even though each one of the 44 voters is convinced of his/her objectivity. Of course, objectivity is an ideal more than a reality.
By the way, the Bay Area media is whining about DeBartolo, Tim Brown, and Charles Haley not making it.
Cheers!