Being allergic to wasp, mosquito and bee bites/stings, as a kid, I couldn't have cared less if all the bees in the world became extinct.
Now that I know how important they are to an ecosystem and how pollination works, they are dying by the thousands in North America thanks to our over-use of pesticides - many despite clear label warnings not to be used near areas where bees are present.
Now think of the price of honey and natural sugar, which will grow exponentially, as will the price of corn and canola. And remember how they can be useful in controlling diseases? Yep.
There is always a price to be paid for not thinking of the consequences of our actions, and the bigger your operation, the likelier even your smallest action can result in a bigger catastrophe.
Of course, that just may be too logical for some. I wonder how long it'll take before we all die.