Vampires aren't a threat to humans like in silly old stories. Humans have taken control, not that they lost it. The Scientist is in charge of studying them and finding a formula to tame them completely. But The Scientist is also doing experiments on his own for his very own hypothesis. If he finds the formula before he finishes his own studies, the human will enslave the creatures. If he can support his own hypothesis before, then he can save them. He can save everyone.