Large-scale changes in cultural practices happen due to natural accidents and/or government intervention. Democracy requires planning and the programming of positive consequences for change. The possibility of counter control limits the use of coercion. Behavior analysis have been useful as a resource to correct and/or devise programs. This work presents examples of interventions in programs used by Brazilian governments to change the behavior of millions of its citizens, in situations like the conditional transfer of income, reforestation, city transit, life in prisons, and dengue control.