Depending on your situation there are some doula services that are partially or fully covered by some medical groups. Varies state by state and depending on income and other factors, but can be a few visits or so. If you talk to a doula collective they may have more info for your specific area.
Academic grants can work in a lot of ways. It is common for a significant chunk to be taken as overhead by the university (20-40%). This is generally smaller for senior members of the faculty who bring in more grants. The PI (primary investigator, read: dude with a reputation) tends to get 5-10% to run the program, and then another 30-40% goes to salaries for researchers working under them (read: grad students). The rest, on the order of 20%, goes to capital costs like materials, time on expensive machines, or prototypes.
So this guy probably got paid $1-2M directly for the grants over maybe 3-5 years. Note I haven’t looked into his specific situation.