They are both part of the human condition, where actions and behavior involve combinations of the two.

It's also part of survival, where one cooperates with other individuals as part of a social contract.

Some aspects may be seen in the eye of the beholder while others may be in the object if they are shared across various groups of people.

The drive to seek entertainment unknowingly stems from the realization of that "bigger picture," which leads to angst.

I think it's the other way round.

Given suffering and limits to growth (which impedes efforts to minimize suffering), it is generally accurate.

It should be motivated by the effects of global warming (coupled with environmental damage) and a resource crunch which are currently taking a toll on the global population and will grow worse.

I would say that given limits to growth coupled with environmental damage, global warming, and increasing population, a pessimist worldview is fairly accurate.