Before revision:  The model combines an effort incentivization mechanism from economic multitasking theory and contest theory with a slower process of cultural evolution  .
After revision:  The model combines an effort incentivization mechanism from economic multitasking theory and contest theory with a slower process of cultural evolution . We find, that an individual level intrinsic motivation towards the societal goal can bound an evolution towards corrupt practices. Overall, the model provides the first sketch of a general theory of proxy based competition in complex societal systems .