In medicine Latin and especially Greek terms are still ubiquitous of course, to the point where a classical education must be a huge leg-up in learning the terminology. Eg: I once astounded my medical student neighbour in halls at Uni by correctly guessing what a 'salpingogram' was, despite never having seen that word before.

Similarly, for (modern) Greeks a lot of opaque medical jargon that baffles most of us must be more or less plain speaking to them.

And then using latinized words also makes normal things sound more technical or scientific than they really are. For example you can say "let's implement business process improvements" or you can say "let's do things better."