Adjustment for live poker tournament

Some of the ICM solutions are too tight even with the right payouts, because ICM does not consider the value of a big stack, etc.

Playing cEV would be a worse mistake, but you can play too nitty following ICM figures literally.

In my experience, though, or at least at lower stakes, live tournaments also have a lot of players who are unaware of / do not adjust for ICM (or worse, play the opposite of how they should, tighter early in the tournament and gambling more late), so sticking with tight play and folding more can actually give you more opportunities to ladder than it might ordinarily.