I can't help getting a little frustrated about the first sentence of this song.
"Science", isn't a person. So unlike a person, science doesn't have a will and can't really do anything if no one is "using" science, or in other words; is experimenting and making conclusions derived from facts.
So then maybe you mean "What scientist can, they do willingly." Well, i would argue that statement, cause obviously scientist are just humans, and humans can be forced to practice science, i'm not saying it happens a lot, but it can happen. Furthermore there are some scientist who are in it mostly for the money, so those scientist do it willingly, but can not really be trusted to produce accurate analyses. Also I think some fair scientist, don't dare to question certain things, because they are afraid people will not take them serious anymore if they do research about some widely agreed upon subjects.