That movie makes me angry, he has no standing in the case. His hive was never harvested. I assume the hives that were harvested appeared to be man made. They never explain those bees perspective. As far as we know they had a deal and now Jerry Seinfeld has now gotten them evicted.
Yeah he has no standing but like, he's also just fucking wrong. The third act of the movie details that the world undergoes an ecological disaster thanks to Barry getting the bees to stop working. As an ending, it has its own problems, but for as much as you can say about the Bee Movie, Barry isn't a hero or even really heroic until the very end. He's just an asshole who's out for himself. Absolutely he fucked over those corporate bees, and he doesn't care, he just didn't want to work.