I don't disagree that there would be attempts to force them. Hopefully, the individual scientists would be able to maintain their ground and refuse to be part of it. There are many tragic examples in the history books of 'just following orders'.
"Just following orders" is the prototypical judgment of past events through the lens of current culture. Refusing to just follow orders meant torture and death for you and your kin under many regimes and in many historical episodes.