As an analogy, if a wealthy person spends $140 on sneakers
To illustrate this with a more apt comparison: a person chooses to attend a specific university. The tuition may be beyond his current earning ability, but the impact that the resources and mentorship of the program he chose may have on his future career, work ethic, and personal sense of motivation may very well turn out to be worth the cost. Or his time there could be a total bust, leaving him having just blown an enormous amount of money on nothing. The point is, whatever the outcome, it is impossible to assign any price or even a price range (as the result can range from nothing to something no amount of money can buy) to such an investment.
[correct me if I am mistaken] do not seem to have been developed by a close and objective study of the subject), and therefore cannot be successfully asserted as the basis of a sound line of reasoning.