Lol, just a FYI about McCormick they also produce the generic spices on the exact same lines with the exact same spices as their own brand.
I worked on the ground pepper line, the ONLY difference between McCormick and the black white 4oz cans was the amount that was considered “acceptable”. Brand name was kicked off it was under filled below 3.75 while generic cans could be 3.5 oz and still considered acceptable.
Or even as subtle as brand recognition. Nobody can research every purchase and when you walk walk up to two items and one sounds familiar. You’re more likely to buy that one.