As for the discreet knowledge that T'Challa's father had killed Erik's father, Luke had a faint idea of it.
But Colonel Zemo, who had been part of the Sokovian Armed Forces and was a B-grade professional at most, had almost gotten T'Chaka killed.
As an elite member of the special ops ghost unit, it was strange that Erik hadn't found an opportunity to kill T'Chaka before this.
If Luke hadn't locked onto Zemo, the latter might not necessarily have ever been exposed.
In comparison, it would be even harder for Wakanda, with its sealed borders, to detect an even bigger professional like Erik.
If Erik had seized the throne during this period of time, T'Chaka's death would have become a small issue that nobody cared about.
Ultimately, Erik chose to seize power first before killing T'Chaka.
That alone made Luke look down on him.
This person was more focused on calculations and interests than on avenging his father.
