Both contemporary life and history show conclusively that people neither pursue only pleasure nor calculate everything in economic terms. It is also a matter of fact that the ruling economic theory does not correctly describe reality. Indeed most of it does not even make an attempt. The primary contribution of academic economists is the repeated attempt to prevent/explain/explain away the business cycle. If you keep score as you go through life, you'll see how well they've been doing.
The insistence that the future will be like today, except more so, is the same of kind of ideological thinking, if you can dignify the process with that term. It is not Roddenberry's assumption that things will be different, blandly skipping ove the map to the future, that is the mistake. It is the recurrent tendencies of hack writers to confuse their gut with their brain that is the mistake. (Yes, by their own inadvertent admission DS9 is the worst offender in this respect. So be it.)