A Cure

It's widely known that a cure for cancer is the Holy Grail of medical research.  Cancer is responsible for tens of millions of deaths across the world every year.  As a result, my question is this: if the HeLa cell line helped us find a cure for cancer, would we still voice moral objections?  Polio was cured using cells from this line.  It is frequently used in AIDS research as well.  Imagine if cells that can trace their ancestor to one woman could bring about a cure to cancer and AIDS.  While the idea that cells were used without the permission of Henrietta, and that certainly presents a moral, societal and racial argument, can we really have that much of an issue with it if it has cured the two greatest diseases in history?