Edit: Surprised at all the vegans in this thread. I didn’t think there were so many of you. I’m glad you care so much about animal rights, that you’re willing to forego eating them and using products made from them. If you’re not vegan and have moral objections for this, maybe you should look at yourself first and all the animal abuse you sanction by eating animals and using animal products. Did you know dairy cows have to be pregnant to produce milk? They’re artificially inseminated throughout most of their lives. I hope everyone complaining about this also complains about ice cream and cheese. Or else they would be hypocrites who just want to blame others but never look at themselves.
So called ethical treatment impacts the speed and scope of research that can be done, and in doing so delays or prevents the benefits of conducting that research. That means that people who could be saved by animal tested medicines instead die in the time taken to find an alternative.