STRONG INSTITUTIONS, the system is bigger than the individual laws actually work, court are independent and rules are enforced no matter who you are, A Nigerian politician knows that overseas status won't save them, ones mistake and consequences follow fast.
NO IMMUNITY NO CONNECTIONs, back home political comes with immunity, godfathers and security details, Abroad they're just another foreign visitor, no police officer to settle, no cousin in government, no phone call to make problems disappear.
SURVEILLANCE AND DOCUMENTATION, in many countries everything is recorded CCTV digital trails body cams, banking system corruption and mis behavior are harder to hide, That alone Forces discipline.
CULTURE OF ACCOUNTABILITY, citizens abroad challenge leaders openly journalist investigate fearlessly, Resignation over scandals is normal Nigerian politicians, in abroad know embarrassment can quickly become international news.
FEAR OF VISA BANS AND SANCTIONS, misconduct abroad can lead to visa cancellation, travel bans, frozen assets or sanctions, many politicians have families, properties and money overseas they won't risk that.
.HOME ENVIRONMENT REWARDS BAD BEHAVIOR, This is the painful part, In Nigeria weak enforcement, poverty ethnic loyalty and political patronage often protect bad behavior, the system quietly encourages excesses instead of punishing them. Nigerian politicians don't suddenly become better people abroad the environment forces better behavior change the system at home.
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This is obviously the truth once our politicians cross over they act decently and obey all the rules bidding the city they are, no unnecessary sirens and convoys accompanies any of them, Former Senator Dino Milaye posted a video of himself while driving around America some days ago and there was traffic jam and he obey it by following his lane without convoy but if it was in Nigeria here he will carry heavy security around.
The reason why abroad is safe is that when the citizens asks for accountability from their politicians they immediately respond by giving statements of account but here in Nigeria if a citizen dares to ask for accountability from any politicians the person will get killed or kidnapped for speaking out. So for fear of being detained and deported all our politicians comports themselves so they won't be embarrassed and ban their visas but my annoyance with our politicians is that they travel abroad and couldn't imitate the way they operate their system instead they go for vacations without learning any policies that will help the growth of Nigeria.