It really depends a lot of the number of players that have started the tournament. If its a smaller tournament with say 7 payouts, then making the FT and 9th spot, is not really worth anything, apart from personal achievement. Here, you should be aggressive against players who look like they are trying to make the FT.
Similarly, when its a larger field, you may already be in the money, maybe the payout structure is paying 10-12th 13-16 etcso actually its not so much about just getting nearer, the payjump bubbles are last 17, last 13, then 10th for the FT, you should adjust a little bit to each of these situations. You can take more risks when you hit 16th, as ICM is now lower, due to no payjump until 12th