For Dr. and pharma companies more sicker people there is more money they earn for now.
Which they will change that system in future, but seems to me it won't happen anytime soon.
However I do think that BMSN is trying to sell a technology not a product, Since their research approach is highly relate to leukemia.
Also for Breast cancer in north America its 92 out of 100 000 "Newly found every year" In health profession we were to identify every 1.5 out of 10 Caucasian female will have breast cancer sometimes in their life time. Not to mention those number will exponentially increasing due to late pregnancy.