I remember this, Ma Ying Yeou telling everyone “look what I found in Wang Jin-pyng’s telephone calls”, the first thought of most people wasn’t what was in the call, but why are you listening in to his calls in the first place, and what business is it of yours to disclose it.
Nothing wrong in holding those in power accountable for their actions.
A banana republic would go after their political rival by targeting people associated with them to create a fear by association, then they would manufacture a crime, plant evidence using the state apparatus and then try to remove them from the picture by means of a legal system. That is happening in some countries, but I think Taiwan’s system is for the most part working just fine.