Sure GRC can be used to augment those efforts even more. Some BOINC projects and BOINC related websites accept GRC for donations, which makes their operation easier (Primegrid, SETI@home, BOINCstats, yoyo@home come right to mind). Plenty of far more expensive coins haven't really attained that level of utility and aren't accepted anywhere, for anything.
Moving GRC to Steem is of course impossible (different blockchains) but you can always trade your GRC for STEEM and deposit it here as such.
Im writing a robust post about STEEM use case right now. I added something about GRC in it. Not saying moving GRC to the STEEM blockchain in technical terms. I mean in terms of the idea behind it.