Typically, it's the big fish that makes the biggest splash.
While watching the Oscars, they honoured Jerry Lewis and they said he was responsible for raising $2 billion for MS.
$2 billion bucks and I suppose they've made advancements, but... $2 billion. It's crazy that all that money hasn't found an answer.
The depressing thing about cancer is that what may cure one type, may not affect the other.
My mother has lung cancer and because of her age, they tried a new treatment. They said it didn't work. She went back yesterday only to find out that radiation is still in her system and after they said it didn't work, her cancer has actually gotten smaller.
One other issue may be that even if treatment is successful in getting rid of an individual's breast cancer, there is still, often a price to pay and that's in body image. (if you a breast or part removed)
I still believe that there are some diseases that are simply not financially viable to cure. As long as we are willing to put money ahead of people, we aren't moving as fast as we can.