And the Whelm spells were added specifically because a character who can't actually deal damage doesn't mesh with the vast majority of games...
Anyways, its been surreal, but this is getting stupid. Take a look at the bard's "misdirected mark." It deals damage and has an effect. ZOMG! It must be the same as every other power in the game! Except the effect in question is to fool the target into thinking that it was attacked and "marked" by someone other than the caster. Its a wonderfully themed little "misdirection" attack. But apparently the fact that it does 1d8+Cha damage means we all have to pretend that its just the same as everything else.
The whole game is built like that. Different collections of powers do different things. As of right now, the best "psychic" character is probably the fey pact warlock- and it teleports, attacks its foe's mind and clouds their vision, and eventually learns to completely control their foe's actions. That's theme. It makes the character thematically different from other character types, and even manages to make the character tactically different as well. And it all stems from "damage + effect," because "effect" is a large, catchall category which no rational person could possibly proclaim to be "all the same."