What's so hard to believe? Getting "lucky" twice or getting 250/hr as a consultant? Not sure if you follow startup biotech stocks but they are high risk, high reward ventures. They're riding sometimes on only 1 molecule and 1 indication and many fail, but if you're with the company when it finally gets a successful filing - it can be like hitting the jackpot.
The thing is, if you've been in that organization when it hits that kind of success - the next thing that happens more than half the time is it gets bought out by big pharma before even filing a BLA/NDA. The buyer usually want to retain the talent and offers jobs to stay on but the brains/scientists/entrepreneurs often hate a large bureaucratic structure and leave only to do it all again from the beginning. And guess who they call to recruit as their project grows - people who they've worked with in the past. Now you have a team that's experienced success and have learned a lot of lessons along the way, with a better chance of repeat success. Example - those startup biotechs developing CAR-T inhibitors are often founded by and recruited former people from Amgen, Gilead, Genentech, etc. Some of those startups have already been acquired within the last few years by bigger companies like Astellas and Gilead, with the buyout turning out very lucrative for the employees (many of whom have already experience a big payout from their former companies growing from small biotech to big pharma).
As for getting paid 250/hr as a consultant. It's not only possible, but for a consultant with decades of experience who has built a good reputation and network throughout their industry career before becoming a consultant - they might not even accept a contract for less than 120-150/hr. When a company has budgeted millions of dollars for a single clinical trial, 200k is a no-brainer drop in the bucket for a talented person that could legitimately minimize risk of failure. Clinical studies are a huge investment of time and money for a company, and they're hinging their future on the pipeline. Trust me - they're not going to be cheap if they've managed to lure a talented individual to the table, especially if they're confident the person can contribute to its success.