Accenture Customer Service Representative (CSR) interview questions

They had given timing for interview from 5pm to 6pm. I arrived at 4.45pm. Interviewer texted me at 5.15pm to say she has over run a meeting and would be done soon. But I was only called in at 5.50pm. The staff in the office had already left before I was called in. Made me wait close to an hour and it was an internal staff that was in the meeting. If they cant respect a candidate I dont expect respect as a staff.