Good Advertising?

I think the most important thing to remember is that this is an advertisement for Draino. Just like all advertisements, the designer has to determine the target audience and what appeals to them. For women in the 1930's, their responsibility was to their home and their husband. Draino wouldn't come up with an ad directed at men because they neither shopped nor cleaned. Women of that time period had shared norms, one being their dependence on their husband and therefore their desire to keep him happy. "A clean home is a happy home."
Draino is appealing to fear of dissaproval. The woman looks clearly worried, and the man looks threatening. I think looking at it now, when it is more common to see women work and men clean, the ad looks sinister and outrageous. However, looking at it from the perspective of men and women in the 1930's, 40's and maybe even 50's it would be more effective and less disturbing. Women would want to go out and by Draino to make sure their husbands were satisfied. I doubt that they were up in arms over this ad like we can be now.