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At the time, no one was getting consent. Shouldn’t everyone be compensated? Isn’t better medicine a compensation itself?
and the practice of using patient biopsy tissue for research was relatively routine. 

Do you have any information regarding legal patient consent requriements in this matter? As far as I know, all of this happened without Lacks' consent.
EDIT: clarified legal requriements >

That was the controversy. I read the book on her and the it all happened without her consent nor knowledge. It seems valid to want compensation for that