Every country that has a 'research' nuclear reactor spends hundred of million to do 'big' science. What would that have to do with the nuclear power industry?

Every country that has a 'research' nuclear reactor spends hundred of million to do 'big' science. What would that have to do with the nuclear power industry? . Producing isotopes is the main use of the [research] reactor. What would medical-isotope production have to do with the nuclear power industry?