NPCs shouldn’t be fully fledged out characters. They are many to be encouragement for the party to improv/ roleplay. If they are hard coded with weakness or aspirations you can’t adapt as the DM/GM. If this is a plot centered NPC such as a patron or BBEG, sure.
The most memorable NPCs either work as a foil for humor or cause a split in the parties loyalties/morality. Too do those things, you need to adapt to a moment.
NPCs shouldn’t be fully fledged out characters. They are many to be encouragement for the party to improv/ roleplay. If they are hard coded with weakness or aspirations you can’t adapt as the DM/GM. If this is a plot centered NPC such as a patron or BBEG, sure.
The most memorable NPCs either work as a foil for humor or cause a split in the parties loyalties/morality. Too do those things, you need to adapt to a moment.