Why? Why?

I'm watching the Olympics and pairs skating has been on for a bit (hence my not paying much attention). One thing I did notice is that one pair threw a triple axel and most everyone else is doing the easier triple toe loop. I know all of the top women can do a triple axel and there's even a man or two (or so) that can do a quad something (toe loop? lutz? flip?) My question is how come a pair can't do a bigger throw-jump than an individual?