Why Is It Ethical To Take Henrietta's Cells?

I think in today’s society, scientists are constantly pushing on the ethical line to make or save as much money as possible. Dr. Gey taking Henrietta’s cells, for example, was an effort to save time and money. Although he may not have directly been thinking of it that way at the time, getting Henrietta’s consent may have been impossible because she didn’t trust the doctors office, or it would have taken more time to explain what he wanted to do and why. Still though, with the cultural and social situation of the time, some people believe it was acceptable to take Henrietta’s cells without her knowledge. If it’s okay to take someone’s cells, regardless of the time period, then does that make it okay for a doctor to give someone cells or diseases