Wow. Super judgey.
And, maybe rather missing the point of the Black Panther film, in which T'Challa learns that being too focused only on Wakanda is, in fact, a flaw.
This T'Challa's indoctrination in "Wakanda Before All Else" stopped when he was a boy. He then chooses to take on other responsibilities, and makes good on them. His blood kin are not somehow more deserving of his aid than anyone else in the galaxy. His home country and planet are not somehow more deserving than any other worlds. What does it matter which people in need he helps, so long as he's helping people?