Maybe, but there is another force at play here too. It's that journalists want stories about AI, so they look for the most prominent people related to AI. The ones who the readers will recognize, or the ones who have good enough credentials for the journalists to impress upon their editors and readers that these are experts. The ones being asked to share their story might be trying to grab the limelight or be indifferent or even not want to talk so much about it. In any case I argue that journalism has a role. Probably these professional journalists are skilled enough that they could make any average person look like a 'limelight grabber' if the journalist had enough reason to badger that person for a story.
This isn't the case for everyone. Some really are trying to grab the limelight, like some who are really pushing their research agenda or like the professional science popularizers. It's people like Gary Marcus and Wolfram and Harari and Lanier and Steven Pinker and Malcolm Gladwell and Nassim Taleb, as a short list off the top of my head. I'm not sure I would be so quick to put Hinton among that group, but maybe it's true.