The wording of Empower Spell is "All variable, numeric effects of an empowered spell are increased by half including bonuses to those dice rolls." Does "all variable, numeric effects" include damage dealt by the Violent Thrust version of Telekinesis? e.g. would the weapon damage be empowered if I hit someone with a telekinesis sword? (I would assume it would work the same with Maximize.)
No. The damage is no done directly by the spell, the damage is merely weapon damage, which is not part of the spell and would not be affected by empower of maximize. In fact, both of those metamagics are virtually worthless for telekinesis.
Also, see this thread where such was asked before.
Drat. Okay, what about feats that add an effect to the spell, like Dazing Spell?
Nope, no dazing either I think. The spell itself doesn't deal damage, the spell picks up objects which deal damage when they hit you.
Ask your GM. It's a weaker choice than a ton of other options, so they may allow it.