For example: in the case of corporate leadership, it is easy and appealing to suggest they aren't creating any direct value... i.e. fire the leadership and 'widgets' will still get made. The problem with this thinking is that the output from some individuals only shows up in the medium to long term... take away great leadership from a company and they will make the numbers for the next few quarters, but in a year they will be out-maneuvered and out-performed by the competition. In today's economy it's not about how many widgets you make, it's about making the right widget in the first place... figuring that out is a lot harder than actually making the thing in the end.
The value some jobs create is more difficult to view directly, but is no less valuable in terms of delivering things people want, that they are willing to pay for - i.e. creating wealth. Investors understand this very well, which is why they are willing to pay huge sums to top leadership.
As a final thought, if you really want to 'reap the benefits' or our more productive society, you can work 15 hours starting today. The tradeoff is that you'll need to move to the middle of Colorado, buy a small plot of land, build your own house and purchase a straight edge razor. If you want to enjoy the vast benefits (however small) that our progressive society enjoys, then you also need to live within that system and work in some way to push things forward... however incrementally.