Even after promising to build a new "Uber 2.0" after purging top executives in a sex harassment scandal, the ride-hailing company is acknowledging that one questionable high ranking official is staying.

The exit of CEO Travis Kalanick earlier this week capped a string of sackings at Uber.  Two independent investigations of the corporate culture under Kalanick found unacceptable sexism, harassment, and bullying.

It was the blog post by former Uber engineer Susan Fowler that got the ball rolling on these changes.  She detailed her struggles with sexism at the company and managements refusal to act - and it turns out that one of her major peeves has not been addressed.  Ms. Fowler specifically referenced chief technology officer Thuan Pham as doing nothing even after she told him that a manager threatened to fire her for speaking to HR about discrimination.  Fowler said "both admitted that this was illegal, but none of them did anything", adding, "I was told much later that they didn't do anything because the manager who threatened me 'was a high performer'."

Over the last two weeks, more than 20 employees were asked to leave.  But Pham seems to have come through it unscathed.  He's still CTO, and that's bringing accusations that Uber has failed to hold a high-ranking officer to account for misogyny.

"It's sad," said Julie Ann Horvath, who has brought attention to her own struggles with sexism in Silicon Valley.  "It sends a message that as an industry we value men in technical roles more than we value the safety of women," she added.

Another female engineer, Amy Nguyen, also had questions about Uber's inaction:  "Wondering why there isn't more fuss about the CTO still being at uber, given that so many of the problems came from engineering org," she tweeted.