I think most people in America aren't accidental moderates or "intentional moderates" or hardcore liberals/conservatives. I think most of them have limited opinions or investment in politics. Their experience is more akin to their patronage for a sports team than a system. They repeat things important figures for their side say and some of them can be bothered to vote depending on how much their side has stirred them up recently but they don't actually care much.
For those that do care. The people that Graham is liable to label intentional moderates are most apt to have as rich an opinion as accidental ones. Not expressing strong positions in public in America is how you avoid having to hear other people's strong opinions that you don't much care to hear.
In America it's not courageous to hold strong opinions from both sides of the aisle especially as a rich person. Most people will experience zero downsides. For those public figures that do they start off so much better off than most of us that their maximum downside is still much better off than most of us.