Purim has many allusions to korbanos. When we shect (slaughter) an animal, we are elevating it by allowing it to become part of a higher level of creation, the human. When Esav sold the bechorah to Yaakov, he expressed that he had no desire or use for something transcendent, as he is a man of this world. In contrast, we always work to bring things up and elevate them in order to become closer to Hashem. The names of the advisors who told Achashverosh to kill Vashti are references to the different elements of korbanos. Hashem then planted Esther in the palace so that we could ultimately return to serving Him in the Beis Hamikdash, elevating material elements to come closer to Him.