Max Martin (https://en.wikipedia.org/wiki/Max_Martin) said that it is in large part a Soc Dem mentality. Americans often became divas as they succeeded in the music industry but Swedes understand that their success depends on everybody. This makes Swedes more attractive to work with and they can work with better talent. Max also actively promoted and trained new Swedish songwriters throughout his active years and kind of built a model that other successful Swedish songwriters emulate.
Max Martin (https://en.wikipedia.org/wiki/Max_Martin) said that it is in large part a Soc Dem mentality. Americans often became divas as they succeeded in the music industry but Swedes understand that their success depends on everybody. This makes Swedes more attractive to work with and they can work with better talent. Max also actively promoted and trained new Swedish songwriters throughout his active years and kind of built a model that other successful Swedish songwriters emulate.