The majority of humans don't play a musical instrument, and some of us that do don't have a deep understanding of the structure of music itself.
So anything that's called "music" which is created for the masses has to have elements which they can relate to. It can't really be instrumental skill, creative counterpoint, multi-level harmonies, etc. The majority of people understandably wouldn't understand what they are listening to. That leaves a catchy piece of lyric, an easy-to-remember riff of a few notes, an infectious beat, or a theme which tugs at a pre-determined emotion in order to make appealing.
Then we have the making of a "hit" within the pop music industry, which Pink Floyd's song "Have a Cigar" parodies quite well. A producer and a would-be star come up with catchy thing they call a hit. They buy a contract with a radio network to play it ad infinitum, ad nauseum and promote it to the public as the latest hit from whomever. It's almost like an infomercial. This creates recording sales and concert bookings, and the "star" starts to make some money. If they've got some "shtick" to their performance (mostly looks & attitude) they will continue to make sales. It's a marketing ploy at it's base, and it's the image of the performer and their performance becomes the centre-piece, never the actual music. They're rarely called musicians, and usually referred to as "recording artists" ... an honest admission.
So that's the long way of saying, that the vast majority of humans wouldn't know truly good music if it hit them in the face. Personally, if I ever wrote & performed something that became a "hit", I'd be wondering what I did wrong ... seriously!