Forbes is a card-carrying member of the 1%. His arguments are ludicrous. Of course, Joe Six pack does not care, because he does not know or better - the numbers involved are so absurd and beyond the comprehension of the average citizens that he CANNOT care! But the Billionaires' wealth is not 'created', it is redistributed, like the wealth of feudal lords was not 'created', they took their lands and the majority had to put up with it. In those days it was just brute force, now it is ideology supported by media that is basically controlled by the 1% (remember: free speech means that 200 rich people are allowed to say what they want you to hear, think Murdoch, Barclay Brothers etc).
This ideology perpetuates the 'trickle down' effect, so if Louis XIV builds his Versailles the workers benefit from the expenditure. Now of course the capitalist (better: free market) system needs free interplay to generate a growing and productive economy. But with the wrong signals and rules of the game we get absurd results. People who make billions playing the markets, benefiting from market failure and rigged rules that preserve them (copyright, corporate law, tax subsidies for financial gambling casinos).
All these are the result of a lack of democratic control where the lobbies of the (Super)Rich control the state and prevent full and public discussion. Paying the multitudes off with 'Welfare' and driving them into ever-larger indebtedness (to the Haves, as every debt is the asset of someone else) has led us to the present situation where a public revolt is becoming increasingly likely. Populism will become more and more 'popular'.
Steve Forbes says nobody cares if Bill Gates gets richer because of tax cuts - MarketWatch