Kings Cracked by Stack Again (tourney)

BAD BEAT

I don't understand why the big stack always has such a big advantage. I couldn't really do anything here by not moving all-in pre-flop, so I just decided to push it in. I was an 88% favorite on the flop. The ten on the turn was only one of two outs the villain had. However, since it was a heart, I still had outs but it didn't come on the river.