Pip-pip, old man.
These gents apparently had more pressing matters to which to attend than lolling around in a bath tub; certainly there were meetings to take and fortunes to make. In 1925, a shower had the cachet hot tubs enjoyed in the 1970s. Not just a convenience, the shower connoted a level of civility, success, and a modern outlook on life. Today, having a temperature-controlled waterfall in our home is no longer appreciated as the plumbing achievement it truly is.