Maybe in SF or NYC, but even then I don't think $125/hr or $260K/year at 40 hours/week is "standard" even there.
If you just closed a $40M round of VC financing, $500/hr for a 1-week project ($20k?) from someone you know isn't crazy. If you're a bootstrapped company and that's 6 weeks of revenue it's not as easy of a decision even if you think the ROI is there.
1. You're not differentiating between the rate that's charged and the rate that's paid to employees. I am billed out at $185/hr. I make a small fraction of that as an employee, even after benefits.
2. You're not including any time off - you're figuring 40.0 hours for 52 weeks straight which is ridiculous. US employees are much more likely to be 48-50 weeks. Europeans are at what, 20 weeks a year or something now? (I jest)
3. For consultants (who are not employees), if you want to bill 40.0 hours you're going to be working 60-70 when including all the marketing and admin work, or you're outsourcing that which eats into your base rate considerably.
4. When I was consulting a big reason why was freedom and time off. I billed $125/hr but made probably $50k/yr because I only worked 25-30 hours a week all in. That included all my marketing, proposals, billing, chasing invoices, and actual billed work. It was great seeing a direct financial impact to the amount of work I did, but also sucked because if you have no motivation for more than a few days that impacts you financially for weeks.
Companies routinely pay agency rates this high.
He’s done some e-books, YouTube tutorials, and a blog with tips/tricks.
The $300+ comes from consulting, training classes, and speaking, just depends on which. A day of training is $3000 plus travel and expenses.
At that point, hiring managers will start contacting you about new jobs with big name companies, for big time salaries. That is where you get the leverage. You'll also start getting offers for paid speaking gigs for both public and private talks. The private talks are nice because they pay well and you almost always walk out with a gift and a job offer.
I never finished the book I started because the publisher pulled the contract when 12 (yes 12) books on the subject came out in the same month.
But I did all those other steps and it worked out pretty good for me.