For example, members of a famous forum recently found, analyzed for alkaloid content, and re-cultivated a strain of Phalaris Aquatica because of its notable alkaloid content. Some other mushrooms became popular this way as well — for example, Psilocybe Natalensis, first found in Natal, Africa. Or the now famous Tamarind Tree British Virgin Islands (TTBVI) Panaeolus Cyanescens that’s widely cultivated at home.
So IMO it's not only scientists, but often enthusiasts who end up gifting these discoveries to everyone else!