Yes, the society should focus less on gender, and more on other things that make someone good or bad, successful or not. If we ever want to achieve true gender equality, we should stop every kind of "sexist" behavior, be it positive or negative. But that would be very hard to achieve because such behavior is deeply rooted in our culture.
To be fair she didn't really seem to take pride in overcoming misogyny as to do so she would have to admit that things like sexism and racism were prevalent issues in British society, an idea she wasn't really supportive of. To put things in perspective just over a decade before she was PM her party was openly running with slogans like 'if you want a nigger for a neighbour vote Liberal or Labour', hers was not a party for understanding gender or racial disparities. She also supported apartheid and Pinochet.
She was pretty staunchly antifeminist, going as far to state things like her husband still ruled at home. She wasn't interested in initiatives to combat sexism or help women as a group, despite being the first female PM Thatcher wasn't really great for women.
The differences between men and women are mostly imaginary or exaggerated. We are raised to conform to certain expectations based on our assigned gender, and these expectations inform almost every aspect of our lives. We interact with and treat people differently based on these expectations and assumptions, and we ourselves behave differently because of them. As time goes by, our society will continue to break down these expectations and we will become a more equitable society.
No, society should not focus less on gender until both sexes are treated equally. Women face a much more difficult climb to the top of a business. Therefore, we should understand how women's lives can be improved before we focus less on gender. Gender is incredibly important in our society.