I think I mentioned a while back that a friend was a Hollywood production designer, and he said at one point that there are productions where people feel the possibility of something great, so they pay a lot of attention to details, and then there are shows where everyone knows it's a loser, and they just put in the hours to get the paycheck. Sometimes it's a bad script. Sometimes it's clear the producer is trying to cash in on a fad or copy something successful, while keeping costs low. Sometimes it's a clueless director or mediocre actors. Or a combination.
I imagine a props master saying, "We need a couple of telescopes. Get product placement pieces or whatever is cheaper than having the shop build something." Then, on set, the director saying, "What are they doing? They should be looking in the back of a telescope, turn it around!" and the production designer, sighing, "Whatever..."
Chip W.