Of course the biological research benefits mankind. We actually can cure a
lot of cancer types since the so call War on Cancer. For all researches,
you will always have majority of research that are junks but the 1% is where
the cure come from. The truth is that without that 99% junk, the 1% won't
be there either.
For example, testiclar cancer is almost 100% cure rate...CML is completely
under-control, and it was a death sentence a decade ago.