Bees help plants maintain genetic diversity among certain plants that other pollinators may not target. Genetic diversity helps maintain a thriving variety of plant, tolerant to different environments. Especially important is our environments are changing.
Animals that are bred until they cannot survive outside of certain environments, (co-dependence) are destined to become extinct in the absence of said environment. (In case there's any confusion, insects fall under the umbrella of "animals" taxonomically. Also, in this sentence, the codependent animals may be humans.)

Diverse populations of bees provide benefits and necessities outside of commercial purposes, and are going the way of the American Bison. (Please note the differences from the way of the dinosaur.)