Genesis 34 is told with unusual care and refuses to resolve. Dinah, the daughter of Leah, goes out to see the women of the country. Shechem, son of the local ruler, takes her and afterwards loves her and asks his father to get her for him as a wife. His father proposes a general intermarriage and shared trading rights between the two communities.
Jacob's sons answer with deceit, saying they cannot give their sister to an uncircumcised man, and offering the alliance on the condition that every male in the city is circumcised. The men of Shechem agree, and on the third day, when they are in most pain, Simeon and Levi come into the city with swords and kill every male, and the other brothers plunder it.
Jacob's objection, when he makes it, is entirely about consequences: you have made me stink among the inhabitants of the land, and I am few in number and they will destroy me. He says nothing about justice. The brothers reply with one sentence, and the chapter ends on it: should he have dealt with our sister as with a harlot.
The narrator does not adjudicate, and the two positions stand unreconciled for fifteen chapters until the deathbed, where Jacob finally answers. He curses their anger and their self will, not the men themselves, and pronounces that they will be divided in Jacob and scattered in Israel.
For Levi that scattering became the priesthood, distributed through the tribes without a territory of its own. For Simeon it became something else entirely.