See How Much These Game of Thrones Characters Have Changed Between Season 1 and Season 8

Tyrion's attitude and outlook on the world changes a lot by the end of season seven, and from his appearance nowadays you'd never guess he's a part of the wealthiest family in Westeros. Tyrion knows how much he's changed — in the season six finale he tells Daenerys that he never really believed in anything until he traveled across the world and met her. Tyrion's knowledge of how the "great game" is played is wasted in King's Landing around family members who keep trying to humiliate and destroy him. When he links up with Daenerys and Jon, who appreciate his wisdom, however, Tyrion thrives and is inspired to help however he can.