While our dear sisters have my undiluted respect and unwavering support, Walmart doesn't abuse its female employees because it is misogynist, it does so because it is profitable.
The Rockefeller Foundation did an analysis about a century ago and concluded that if the suffragettes got the right to vote and a greater place in the workforce, it would be beneficial for capital as there would be that much more labor to exploit. Consequently, they supported the feminists and made hefty "charitable" contributions. Walmart's malevolence and the Rockefeller's benevolence are an economic calculation, and does not represent a predilection toward women one way or the other. As is often the case, sectarianism is just camouflage for class war.
http://labornotes.org/2011/06/supreme-court-sides-wal-mart-raises-hurdles-workers%E2%80%99-lawsuits