Wikipedia gives the next definition of culture: "Culture (from the Latin cultura stemming from colere, meaning "to cultivate,") generally refers to patterns of human activity and the symbolic structures that give such activities significance and importance. Cultures can be "understood as systems of symbols and meanings that even their creators contest, that lack fixed boundaries, that are constantly in flux, and that interact and compete with one another". Different definitions of "culture" reflect different theoretical bases for understanding, or criteria for evaluating, human activity."

But we have other word combinations with "culture", "virus culture" for example. Cultivated group of bacteria, so to say "civilized", organized into some form of order to exists and to develop its genes into new forms to survive and to grow. Difficult not to remember the words of agent Smith from the film "Matrix": "Humans are a virus". In the film he goes on that humans "like a cancer for this planet".

I couldn't find the answer for myself, as what can be seen from the plane (asphalt-paved roads, smog and mountains of trash) somehow can remind the target affected organ surface. We won't speak about other damages to the planet (nuclear explosions, chemical disasters, etc). Humans DO REMIND a virus.

Bacterium as people can be good and bad. Good ones improve the organism condition. Cultures are different too.