kigmatzomat
Legend
I guess the real question is if there is an existing relationship between players and the IPB or not.
IMC the PCs knew a powerful wizard; they'd helped each other where the PCs had local contacts and the wizard has stuff/knowledge. The wizard needed somebody to take the DooDad of Safety to the Pit of Doom while the wizard disabled the Doom aspect of the Pit. If the PCs had refused for whatever reason, he'd have resorted to either a Gated being or some other less effective minion. It would also have cooled their relationship.
Similar things happen with nobility and ruling classes. You can often refuse but life will be less pleasant afterwards.
For IPB with no history (eg a Deva or Pit Fiend) things get more contrived. Evil can use the "I'll eat your family for breakfast" excuse and really doesn't need to justify themselves. In those cases the campaign isn't so much about the quest as it is defeating the Evil IPB.
Good IPBs should really be used less than Evil IPBs since it's harder to justify their existence. Good IPBs send messages to clerics when they need stuff done by the piddling folk, not manifest personally.
IMC the PCs knew a powerful wizard; they'd helped each other where the PCs had local contacts and the wizard has stuff/knowledge. The wizard needed somebody to take the DooDad of Safety to the Pit of Doom while the wizard disabled the Doom aspect of the Pit. If the PCs had refused for whatever reason, he'd have resorted to either a Gated being or some other less effective minion. It would also have cooled their relationship.
Similar things happen with nobility and ruling classes. You can often refuse but life will be less pleasant afterwards.
For IPB with no history (eg a Deva or Pit Fiend) things get more contrived. Evil can use the "I'll eat your family for breakfast" excuse and really doesn't need to justify themselves. In those cases the campaign isn't so much about the quest as it is defeating the Evil IPB.
Good IPBs should really be used less than Evil IPBs since it's harder to justify their existence. Good IPBs send messages to clerics when they need stuff done by the piddling folk, not manifest personally.