No I still hold to the belief that there was no impurity in the life of both noble personalities. As quran garantees it.
The seerah of Prophet (s) is uswa hasna for us and no one can beet that. Using your analogy, Prophet of Allah must have had abused, tortured, beeten and often quarreled with his wives. Since this is also a commen practice of a lot of muslim narried men. Ther must be an example for ummah for things like these in Prophets sunnah. 
Iconoclast, Not sure but I think I know where are you comming from. To be honest I am not very versed in that issue. I recommend you to open a thread in shiachat.com or write a letter to Aqa-e-Sistani through his website. I am sure you will get the answer of your queiries.