Every specialty has taboos and learning what they are and how to avoid them is part of being successful with the job. As a physics graduate student I made an impassioned case to a high energy researcher that the money spent on high energy research was low yield and should be pushed to the biological sciences ... suffice it to say he did not take my points on their merits. Upton Sinclair’s famous “ It is difficult to…
In science, we as a society throw money at something like high energy physics, because we are telling ourselves, "We love knowledge so much, that we will throw it at high energy physics, which has little economic benefit to us" [1].
In other words, you can't prove that you love knowledge for its own sake, if you only invest in fields which have economic benefits. You have to invest in fields with no benefit, to prove to ourselves that we still care. That has deep and lasting philosophical impact on society.
[1] If you read grand funding agencies internal documents, you will learn that the primary economic benefit of fields like high energy physics is training people on hard problems, who will then go and apply those skills and raise the bar in other fields.