Uber’s ride-allocating algorithm is gender-neutral and offers full flexibility to its users. Driver compensation involves no bargaining, thereby removing any advantage that men might have in negotiating as a possible factor in wage differentials.
Yet, despite this unique set of circumstances, the research team still found a pay gap of 7 percent in favor of men. In other words, even in a job where discrimination does not, and could not, exist, men are still out-earning women by a significant margin. The reason? Choice.
— Read on fee.org/articles/not-all-gender-pay-gaps-are-worth-worrying-about/

Agreed