This is true for Calling spells (planar binding, etc.), and it gets pretty wonky, too. One issue that was hard for me to wrap my brain around was that when you use Planr Binding to call an Astral Deva away from whatever heavenly derring-do it was undertaking, imprison it in a 10' circle, and compel it to do your bidding, this is a GOOD spell. Similarly, binding a Pit Fiend that's up to no good, and leaving it imprisoned to prevent it from further evil is an EVIL spell.
It just goes to show that the descriptor of a spell doesn't necessarily correspond to the intentions of the caster. It's just a way to determine how it enteracts with other effects.
It just goes to show that the descriptor of a spell doesn't necessarily correspond to the intentions of the caster. It's just a way to determine how it enteracts with other effects.