That's true of every sport, and activity. You compare athletes by their immediate peer group only. Tody's players are selected from a larger gene pool, have better coaching, scientific and electronic feedback, better equipment, better nutrition, better drugs, and smaller ballparks.
Babe Ruth dominated his era of baseball to a far greater degree than Barry Bonds dominates today.
Again I ask. How many championship rings does Bonds have? A great player, and team leader would inspire his teammates to play up to his level. Bonds is a great individual player, but a shitty team player, and his lack of World Series success verifies my belief.