When people say, "did you consider your ICM implications before making your decision ?", what that usually means is that there is an level of disparity as you get deeper into the tournament between how many tournament chips you have and the actual value of those chips. At the start of the tournament it is 4:1 if you buyin a 1000 $ buyin tournament with a starting stack of 4000 T chips and this disparity becomes larger when you have money bubbles or large pay jumps.
All of a sudden your chips and having them - has an increased amount of value in being alive in the tournament. That's why in those pay jump or money bubble stages it is okay to make a move and "shove all in" with your chips but it is NOT okay to "call all in" for your chips if you'd risk elimination it would mean not collecting that payout, even sometimes though the move would be profitable in terms of accumulating more tournament chips.
thanks Mr. Dunst.