Regarding 'Leaning In' by Sheryl Sandberg - Her views reflect the 1%.
I am a well-educated woman with an MBA, married to an open-minded, Ivy-League educated man, who has always had demanding professional jobs. We have three children, now ages 18, 20 and 22. Our middle child is autistic and the other two have had their share of 'issues'. If I had worked outside the home, and 'leaned in' to executive heights, who knows what would have become of our autistic son, our daughter's scoliosis, and our other son's myriad issues. I would have always looked back and wondered what a nanny or care-giver had 'done' to our children.   I now have my own floral design business, working out of a home studio.  I am fortunate that I have been able to set up my business at my home, providing the flexibility to still be 'present' for my family.   
I believe that there are many women who are not able to 'lean in' to executive heights due to socio-economic and/or emotional constraints.  Most women I know who work full-time outside of the home, feel that they are not able to do their best at either 'job' (family or work).   They feel torn.  Bravo for Ms. Sandberg that she has it all and can do it all. Her multi-million dollar salary, supportive husband and perfect little children facilitate her ability to espouse 'leaning in'. For the multitudes of other women and families without these luxuries, 'leaning in' to the 'C Suites' is much more difficult, if not impossible, and requires many more sacrifices!