I don't think that's true on the payouts front (I'll get to that in a second).
Yes, if you listen less, the artist you listen to get more. Which I don't think is a bad thing, because theoretically using the current system if everyone listens to less, all the artists get more per play.
This system, while not perfect, gives your money to the artists you listen to and support, as opposed to helping give lots of money to artists you probably couldn't give a damn about.
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As for the payouts, I don't think you did your math...
Example:
Person A listens to four songs by Artist 1.
Person B listens to five songs by Artist 2.
Person C listens to two songs by Artist 1, and four songs by Artist 2.
Assuming that $10 goes directly to the artists from each listener, in the huge pot system, artist 1 is played six times, and artist two is played nine times. Artist 1 gets $12, and artist 2 gets $18.
In the individual distribution, artist 1 gets ~$13.33, and artist 2 gets ~$16.77