If he was considered a founding father of my country's current political system, yes I wouldn't expect my interests to prime over the general interest. They wouldn't get nothing either, we're talking about not randomly selling them to the highest bidder.

I don't know if it matters if DeGaulle's child were/are pretty affluent and were always part of the high society in France. Their success and extremely recognizable pedigree was supported by their grandfather's shine, so I'd think they got enough from it to give up on hyper-monetizing historic papers.