It was slightly over $400/hr. The claim it was $5k/hr comes from the Berkeley guy who didn't include all the time she spent in his calculation. He either misunderstood or intentionally lied to make her look bad.
I was once paid 3,500 for a single 15 minute talk. It took me about 5 days to read various technical materials and condense them into an executive summary that could be delivered in 15 minutes. There were about 100 people in the audience. They got excellent value for money and I got paid reasonably for my research.
The Berkeley guy volunteers for free, just for the record.