Bioethics degree?

I’ve been working in a health care role and general questions of justice, compliance, safety, etc are really gnawing at me. I saw an ad for a Bioethics MA (although I won’t post which one because it looks like a nonsense diploma mill to me). I took a couple of bioethics courses in undergrad and I remember talking about “hot” topics like family planning and assistance in dying but I’m more concerned about how the things I see in the lab where I work that are impacting patients’ lives. What do you learn if you go to grad school for bioethics? What level of education do you need to obtain to actually have an impact? Also I’m sure there are non-sketchy more rigorous bioethics graduate programs I just don’t know what I want.