This one is obvious but we will try to make it clear that we do not hate humans, but we do see them as guinea pigs in many ways. There are many reasons why we have experimented on humans for a long time but the main and most important one is that we believe that only by experimenting on your bodies, while alive, that we can really find and understand new ways to help you. This is why we have been conducting very secret experiments on humanity, be it individually or with the masses. We need to understand how you perform in different situations.
This is really going to allow us to help you a lot more and discover new ways to enhance your quality of life. We have technology that is far superior to yours, but a lot of our technology is far too advanced to be used in your bodies. This is why we have kept most of it unavailable to you.