Not trying to be judgemental, but this is my observation regarding Pacman joining in politics.
The problem I see in Pacquiao is that he is just
too soft/buotan, he will easily be abused by his enemies/critics once he lands a seat in politics. They should pick someone who isn't "touchy-feel", someone who is determined about his decisions despite criticisms just for the sake of change.
Most likely that he is not aware that the change he claim will always draw opposition, Pacquiao is the type who cares too much about his peoples emotion.
It will just hinder his goals if someone will complaint about his actions.
I don't want him to end up like another clone of Vilma or Father Panlilo, people that are too honest but barely done anything to uplift their homeland.