There is a difference between being illiterate and having no brain at all. I think the show depicts Gopi as a dumb person as opposed to illiterate. Gopi should be shown as being smart in spite of not being educated. Also, Kokila's effort should be more in terms of getting her educated rather than making her run around Ahem like his body guard. In today's world being educated is very important. Gopi does not need manicure/pedicure or stuff like that to impress her husband.. She needs to invest time in educating herself and stop behaving like a retard..