Guys, Tsuyoshi's yakuza now, and yakuza DREAM of getting into office so their "businesses" get overlooked. It'd be stupid to not accept Hoshizaki's offer.
I don't think Tsuyoshi should accept either, but this is unfair to Hoshizaki and his dad, since neither have 'fooled' Tsuyoshi before:
his dad labelled Tsuyoshi anti-social because Tsuyoshi shooting guns EVERYWHERE clearly wasn't self-defense
and Hoshizaki's offer is genuine attempt to help Tsuyoshi remove the label and contribute to his dad's government- though it's iffy if it's reliable when politics are involved.