Every power in BioShock has the potential to be totally useless, depending on your strategy. Since I favor more of a run-and-gun method, the powers of Lighting, Ice, and Fire were of great help to me, while I literally only used Telekenesis that one time you have to to clear the crap that's blocking the door. Similar for powers like Enrage, Security Bullseye, and Cyclone Trap.
Of course, if your battle strategy differs from mine, you may have found the above powers life saving. Like I said, it's all in your strategy.