I too was a musician and to this day I can say I dislike about 98% of rap junk. I also "played" jazz and much of the "new age" disonants I also could not stand.
I do not revere the "Beatles" either thinking they set back rock and roll about 10 years when they first appeared and seemed to evaporate the girl groups emerging at the time.
Now markedly, the Beatles rise to fame were on the lips of millions of screaming "teeny bobbers" who had little understanding of music or chord structure.
It is the "general public" that votes with their pocket books on what remains cogent at the time. Quality of said music structure or harmonic combos or note progressions would lose out to that profusely all of the time whether good or bad.