In the financial world...and Moshiri will know of it, It's called The Greater Fool Theory.
In
finance and
economics, the
greater fool theory states that the
price of an object is determined not by its
intrinsic value, but rather by irrational beliefs and expectations of market participants.
[1] A price can be justified by a rational buyer under the belief that another party is willing to pay an even higher price.
[2][3][4] In other words, one may pay a price that seems "foolishly" high because one may rationally have the expectation that the item can be resold to a "greater fool" later.
But surely I hear you say, surely a billionaire accountant would never fall for that bit of arl flim flam
Enter stage left Bill Kenwright
Done him like a dinner.