Itachi was a famous prodigy of Konohagakure's Uchiha clan.
He became an international criminal after murdering his entire clan
and joined the Akatsuki.
Itachi's motivations were more complicated than
they seemed, and that his actions were only ever in the interest
of his brother and village.
Therefore by remaining a loyal shinobi of Konohagakure
to the very
end.