We seem to have a disproportionate number of sayings and heuristics making us less impulsive and making our time horizons longer. That might have developed as a way of sustaining the long-term discounting we humans have in comparision to other animals; http://www.wjh.harvard.edu/~mnkylab/publications/animalcommunication/constraints.pdf has a nice diagram (figure 3) showing the difference between human (slowest), rats and pidgeons (fastest discounting). Slow discounting might be linked to our foraging lifestyle, http://www.wjh.harvard.edu/~mnkylab/publications/animalcommunication/constraints.pdf but since human societies have developed quickly recently the benefits of discounting have risen faster than evolution could have adapted (or impulsive individuals have a fitness advantage by having children earlier).
So maybe we have a culturally transmitted bias towards slow discounting and persistence, that normally counteracts our too fast discounting. But in some individuals it becomes maladaptive, perhaps because they already are naturally stubborn.
Another approach might of course be to try to boost self-control. Self-control correlates with being able to delay gratification, long-term planning and career success. An enhancement of this would be socially and individually beneficial, probably far more than most other cognition enhancers.
There are experiments that demonstrate that glucose drinks can actually boost depleted self-control: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=17279852 and presumably there might be more deep methods of enhancing it. So one strategy of handling the rise in temptations is to make us better at handling them.
An interesting and rather worrying paper is this, http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?itool=abstractplus&db=pubmed&cmd=Retrieve&dopt=abstractplus&list_uids=14756934 which argues that it is the flow experience of games that hooks us. Normally flow is hard to achieve through stimuli, which at most just generate happiness, but the more profound flow state seems triggerable by the right games. This goes beyond mere habit-formation to get a pleasurable stimuli since the highly motivated flow state involves using all mental resources to prolong and expand the state. So we might not just have to learn how to overcome simple pleasure temptations but also complex flow temptations.
Overall, enhancements of strategic individual thinking would be extremely useful. But there are no guarantees they will be developed at an equal pace as the games.