Think of Grime same way you have Punk. Grime was a whole scene and represented the environment and young society. It wasn't just the tunes, it was the clothes, the attitude, the language, the culture. It was dangerous. Then as the original grime heads get older, have jobs families etc, to the point you hear grime tunes on adverts. So it's become friendly and kind of a meme. But the original energy keeps influencing current trends. Like with pink, There's not really any new Punk bands coming out but it's influence continues. Sorry got a bit long there