You don’t have to like Cosmo to have admired Helen Gurley Brown. You only have to appreciate how rare her voice was at the time it appeared: Sex and the Single Girl came out a year before The Feminine Mystique.
And she was, of course, a pro-sex woman’s voice which in the 1960s and 1970s was not very acceptable in mainstream feminism.
RIP, Ms. Brown. You did good.