Yes there are some, that maybe an absolute case, but again are products of environment and genetics. In general most everyone is not an absolute.

Again in what country. In a tribal society you would get taken care of. If you have no pension or retirement then you don't have much to live off of. Social security is not enough. But many American don't have a retirement and work their lives away. A good example would be a migrant worker that is illegal, but will never receive Social Security, even though they work and produce.

You are thinking in another default of cultural assumptions etc.

Also being both isn't necessarily a contradiction.