_3rd level_ counts as "high-level"? What game are you playing?
Bestow Curse and Remove Curse are 4th-level spells, and if it makes you feel any better, I can call them "higher-level spells".
You suggested a low-level campaign to get a low-magic feel. Unfortunately, many "low magic" spells aren't available to Wizards from 3rd to 5th level (the levels you suggested), and many flashy spells are. Bestow Curse is higher level than Fireball and much, much higher level than Magic Missile.
In any case, the important point is that bestow curse and similar spells are _powerful_, regardless of how flashy or otherwise they are.
In a typical 1st-level dungeon crawl, which spell would you use more often, Bestow Curse or Magic Missile?
It's a moot point anyway, since we can easily scale up or down the power of most spells.
I don't see anything wrong with _some_ flashiness in the game, whatever level I happen to be at.
In a low-magic setting where magic's supposed to be subtle?