Now "exit the town" once they win (suicide).
Pirate exits as soon as it plunders twice, but on a later priority than its plunder so that it wins first.
Executioner exits the night after its target is hung so that it wins first.
Both of these roles can win and stay alive before the game ends. That means they are wild-card votes that cannot be punished for most things as they have already won — and a potential swing factor. To eliminate said swing, if these roles leave the town before their votes matter, this reduces potentially unfair game outcomes on both sides, and gives Town a new reason to help Executioner:
9 Town, 4 Mafia, 1 Witch, 1 Exe.
1 town dies N1 — 8 Town, 4 Mafia, 1 Witch, 1 Exe.
If you hang the Exe's target, that makes it 7 Town, 4 Mafia, 1 Witch, 1 Exe. The Exe dies the next night, and another Townie might die.
6 Town, 4 Mafia, 1 Witch.
Godfather cannot claim Exe now and so any immune claims can be executed immediately. Plus, this confirms a nonessential slot as Town and denies a potential Mafia-sided vote.