Is my work as a typist for the transactions of members of Parliament considered participation in sin and aggression, given what I perceive as a quid pro quo between MPs and ministers to ensure votes in their favor?

It is permissible to work for this member. However, if you are asked to print a transaction and you know that he does not deserve it, and that it is a bribe, then you must refrain from printing it, as that entails aiding in sin and aggression. But if he deserves the transactions, or you are unaware of his deserving them, then there is no harm in printing them and assisting with them.