The Gemara states that the source for the precept that poverty is akin to death is from that which it is said (Shemos 4:19) Hashem said to Moshe in Midyan, “Go, return to Egypt, for all the people who seek your life have died.” The Ran explains that this verse, which was said regarding Dasan and Aviram, could not be referring to tzaraas, lack of children, or blindness. They could not have been blind because Dasan and Aviram said about themselves, (Bamidbar 16:14) “even if you would gouge out the eyes of those men themselves we shall not go up.” They could not have been afflicted with tzaraas because it is said regarding Dasan and Aviram (Devarim 11:6) in the midst of all Israel. It cannot be said that they were lacking children, because this would not warrant that they would not be able to stand before Pharaoh. Thus, Dasan and Aviram must have become impoverished, and for this reason they did not have a voice in the royal court. One must wonder, though, why the Torah felt it necessary to describe their poverty in this manner. Perhaps we can suggest that the Torah sought to teach us that poverty is akin to death, and the Torah chose this instance to demonstrate this concept. Yet, it would seem that there is a deeper meaning to the Gemara. When Yehudah told Yosef that his brother had died, Rashi writes that Yehudah uttered a lie out of fear. The Sefer HaKsav V’haKabala (Bereishis 44:20) writes that this does not mean that Yehudah lied outright. Rather, Yehudah made a declaration that could have more than one meaning. When the Torah mentions death, in addition to the conventional meaning of death, one can also interpret death to mean descending a level. Thus, writes the HaKsav V’haKabala, this is the meaning of the Gemara that states that four are akin to death. Death in this sense means that they have descended a level from where most people are at, and this is akin to death. It is for this reason that the Torah chose to state that Dasan and Aviram had died, because by becoming impoverished, they had fallen from their previous stature.