Neil made a mistake with the dress, but he did at least make the sale at a negotiated price. He had a sub-team who could have pointed out to him that it was the wrong dress. Neil would not have been fired.
Kurt made a mistake with the flag, there were two others in the car that could have pulled him up on that, it MAY have been a firable offence, but its more likely that Sugar would have just fired Natalie for contributing little, than Kurt was for that error. Kurt did make a sale.
The women have been poor in this season, that's not sexist, that's a fact, they lost three out of three Boy V Girl tasks and Sugar has outlined his disappointment in them - was that sexist?
Its business! Zee should have walked for not backing up his credentials, not for sexism which didn't occur.