Physics (since it's supposed to be rigorous) seems like a less likely area than some to be driven by politics and trends, but I suppose I can imagine that competing research programmes and ideas benefit from a certain amount of marketing and smooth-talking of people with funding rather than relying purely on empirical evidence for their claims.
Physics may be in some sense more falsifiable, but it is absolutely subject to politics and social norms, both in how it lies about itself for money, and literally in which theories are chosen (since we can rarely empirically distinguish between them)
Academia is rare for having the engineer also be the salesman
My wife is the lead mechanical engineer at a small company and she definitely doesn’t have to go around convincing customers they need her products