I'll agree with you that the look of manicured nails might be down to societal conditioning, but IMNSHO the manicure itself is pure joy. I started yesterday with a manicure and it put me in a good mood for the rest of the day. The pampering, the exfoliating wash by someone else and the massage were worth it even before we came to the expert application of the nail polish.
I would rephrase that slightly, I wish that we lived in a world that knew the difference between beauty and comeliness. You cannot apply beauty, only comeliness. Beautiful people come in all different shapes and sizes and some are downright plain to look at, but their true beauty shines like a beacon in the night.
Society pushes forward with the stereotype of comeliness having a flawless complexion, thickened eyelashes, sensuous mouth, never being above a certain weight ... and then tries to persuade us that this has something to do with beauty - the two are totally unrelated, because IMO beauty can only come from what is inside you.