Does an "office psychopath" often "kill himself off" as a result of his overkill ?

Question

Just as Genghis and his cronies effectively killed themselves off.

Their capital Karakorum was levelled.

Timur helped Tokhtamysh to take the power in White Horde, against Urus. After this he united the White and Blue Hordes, forming the Golden Horde.
But Tokhtamysh has territorial ambitions in Persia and Central Asia. For account of this he turned against his old ally, Timur.
Timur began his offensive, raiding the Golden Horde's territories. He defeated Tokhtamysh in the Battle of the Terek river in April 15 of 1395.

After the defeat in the Battle of the Terek River, Tokhtamysh was deposed of the throne in Golden Horde. He was replaced by Edigu. Then Tokhtamysh escaped to the Ukrainian steppes and asked for help from the Grand Duke Vytautas of Lithuania. The two combined his forces in the Battle of the Vorskla River in 1399, but were defeat and annihilated by khan Temur Qutlugh and Edigu, two of Tamerlane's generals. Around 1406 Tokhtamysh was killed in Siberia by Edigu's men. The Golden Horde never recovered from after this war.

Answer 1

Political suicide.

Answer 2

i don't know how to answer that one
that out of my comfort zone