This is such a good point and an additional layer of interest. Because you’re right. Bruce had admitted to more or less cosplaying working class himself for ages. And these days his most ardent fans, from my empirical and unscientific observation, seem to be rich while liberal folks who enjoy the same cosplay. It’s all some kind of weird ritualistic absolution thing. Or at least has evolved from something true to that.
Discussion
Many storytellers make use of the experiences they're interested in and the people around them for inspiration. Perhaps Springsteen played more with the blue collar cosplay for marketing purposes and never let go of it.
With some light research on the ever reliable Wikipedia, Springsteen took the title from the original title of a movie that he was potentially gonna play the lead.
The Movie was titled "Light of Day" starring Michael J. Fox
https://en.wikipedia.org/wiki/Light_of_Day
