You’d need to enforce no income from other sources also. Before, during, and after. Significant monitoring of extended family and personal connections. Should those things be monitored for corruption under their current salary?

If proper funding for journalism and watchdog organisations, or judicial bodies designed to serve the people’s interests, hadn’t already been dismantled or drowned out in the din of other voices it might be possible. Those systems/funding could be restored and the competing intrests spewing lies culled or limited. It is not impossible, but it will be hard. Attend in-person forums if you can tolerate it. Speak and lead if you can. Make connections.