It means a good security research company might make $500k for a good researcher, if they could bring in enough work to keep them 100% utilised. Less actually, given paid time off.
Which, if past experience still hold, translates to something more like ~$165/yr + benefits.
Sick leaves, maternal leave, underutilized for sure (toilet, meetings etc).
Just for reference, I have had an audit from PwC and they were skeptical about our 65% time utilization because usually anything above 60% is fake at least partly. LOL, I thought, they were right, we ended up just about 60%.