There is a dark side to science - indeed science is now almost exclusively dark - in the sense that science is done for reasons of power rather than love.
There was a time when science really was done - mostly - for love; by people who loved knowledge, and were not intending to *use* it.
Naturally, this was an amateur science.
Professional science always always trends to become a means to an end - science purports to generate power: Professional science - in effect - sells power.
Medical science is the dominant world science - and it (falsely, in practice) promises to cure disease, relieve suffering etc: pursues knowledge, therefore, purely a means to an end.
But originally even medical science was done for love, by doctors and other clinicians, as an overflow from their practice: they wanted to understand, not to control.
As a by-product, in practice, the old medical scientists actually made more frequent, more useful, more powerful discoveries than we do nowadays in the vast industry of careerist drones - and this efficiency was not a paradox, because theirs was true knowledge, knowledge less-tainted by expediency, more dependable: in other words it was knowledge rather than marketing, spin, hype and BS.
Understanding enabled control, control came via understanding - aiming directly at control yielded not control but merely corruption.