Dirty, dirty, dirty! The stern Victorian value in a clean home lead to such sterile home environments that modern children today actually have undeveloped immune systems through a lack of exposure to bacteria! The point about the old value in sterilising ones environment was that it fell very neatly into the then popular modernist narrative - that the sterilisation of our environment was actually a sign that humans were further removing themselves from barbarism and becoming more 'civilised'.
Infact it was nothing of the sort; it was a perfect case of supply creating demand, false demand about the myth of hygiene. Almost all sanitary products create themselves a false market through false propaganda about the severe health risks of not constantly cleansing yourself or your environment in some form or another.
http://www.guardian.co.uk/media/2007/oct/24/advertising.asa
Don't fall for the lies. A few rats about here and there and a bit of grime never did no-one no harm. Don't be so
bourgeois.