They actually kinda don't. I mean, if you do the old trick of comparing median income without considering working hours, type of job and risk of jobs, then yes, it exists. But when you compare a man and a woman working the exact same job, for the exact same amount of time with all the factors being the exact same, the wage gap doesnt exist. Its a myth. And yes, people still murder while its illegal. Less than .1%. If you try paying a woman less for being one, she will sue you. So you don't.