As the population ages, the younger generations get smaller and the older generations get proportionally larger. More and more money will need to go to paying for retirees life styles, and they expect retirement life styles like those of their parents who had the benefit of a working age population multiple times the size of the retired population.
In the quest for this, often times not are that this is the effect they are seeking, they have to take control of ever more of the most message resources to force younger generations to do more work for less pay to support them.