Not in the way you explain. Multi-million dollar grants are usually awarded over multiple years, and pay for multiple researchers’ salaries, as well as other resources, some of which are expected to outlast the project (e.g. microscopes, or hardware for databases). Burning 75k on a single experiment (which is effectively what was done here) is rare.

Note that this is true even for current hot topics such as biomedical (e.g. cancer) research, for which vast chunks of the federal budget have been allocated in multiple countries. Obtaining similar sums in less sexy fields is much harder. And even in biomedical research, multi-million dollar grants are considered large. Most grants are much smaller, they just don’t get talked about as much.

Since you mention human RNA samples I assume you know this. You mention the per-milligram cost but this is pretty misleading if you mean to imply that “milligram” is somehow little, because it isn’t: yes, the samples are tiny (≤1 µg of RNA is more typical than milligrams!), but so what? It’s not like we need more.