David Liss said this quote

I fear we face a new kind of man along with this new kind of affluence. When lands meant wealth, men could perhaps have enough. Too much land was difficult to govern. But with paper money, more is simply more. In France, you know, where they suffer from their own financial mania, they have a word - the millionaire - to denote men whose wealth is measured in the millions. Millions. It is inconceivable, but there are more than a few men who hold this title.