Then what makes you think adding an extra 10k will make any difference? If people made it a goal to hit the current cap (as they clearly did), I'm sure they'll simply view the increased cap as a renewed challenge.
Yes, but not all will be able or willing to do so. It should thin out a little. Right now, half of the top 20 have the max. If in the future half as many do, the top list will finally have a meaning again.