I've charged that rate and it's usually veeeery niche knowledge that somehow seems to combine more than 10 years of experience. Like I worked in information security and aerospace and am a C/C++ coder and someone is thinking about a software product that's a C++ library for securely communicating with satellites.
I'm usually contacted by engineers or companies that do market surveys and have the detailed knowledge of my background, so doing a lot of those (which are usually also compensated at like 40 to 60 per hour) pays off.
I haven't been able to engage in any of these for two years now because I moved to the US on an H1B visa, but the offers still keep on coming. I got like five in 2019 and two in 2020 and I had to say no.