I can't help liking the idea of sharp-suited high-flying executives making their way up a grubby, seedy little alley at the back of Rose Street for a relaxing sauna before going back to their hotel (presumably) ready to take on the next day's business challenges.
It's the linguistic self-delusion, similar to exclusive executive housing developments which probably routinely contain no executives. The inversion, where the main event becomes an 'extra'.
My day is mapped out - search for errors and fix them, John Lewis for a new coffee machine and then Costco for bulk purchasing. Fun, fun, fun.