The time has come to seriously examine the biological consequences of rampant immorality.
If an alien life form was observing human civilization (and perhaps they are!), probably they would classify "disease" not only biologically, but socially. This would make sense if disease was defined as a "force of nature" which had the potential to lead to civilization death, if not species extinction.
With such a definition in mind, elitist greed could certainly be the number one candidate for the death of human civilization and/or the extinction of the human race.
We really don't have good definitions for such dynamics (even though we critically need them!), but clearly some variation of elitist greed could manifest in any "advanced" life form. A homey image is the choking of a dynamic ecosystem such as a country pond when it is steadily taken over by moss. It is a sad thing to behold, since the moss gradually suffocates the environment and a dead and stagnant pond is the result.
The astrophysicist Carl Sagan used to worry about such things, fearing the discovery of atomic energy would be the inevitable beginning of the end of advanced civilizations in this or any other galaxy. He felt the universe was teeming with life, but that few if any of these civilizations could survive the combination of devastating atomic weaponry with the raw stupidity of the life forms.
The jury is still out on Sagan's speculations, but perhaps he didn't live long enough to see that the limitless immoral greed of the planet’s elites is almost certainly far MORE dangerous than the morally neutral discovery of atomic energy.
Consider the facts (and please forgive the general outline as this is not the place for a properly worked out monograph).
The "elites" make up one percent or less of the human population, and yet they absolutely dominate the entire planet. This ratio also exists in America which a textbook example of a Dictatorship of the Rich.