Here in Maine, wasps of all kinds are good pollinators as well as several varieties being effective predators of several insects that would otherwise eat up our fruits and vegetables (Tomato Hornworms are in the latter category.) They are a favorite food for skunks and bears as well.
We prefer to co-exist when possible. The nearest yellow jacket nests, however, have to go. They are in the big vegetable garden where we must have access, and each time we are stung we react more severely.