Why is Nigerian currency different from Abroad??
Why is Nigerian Language(s) different from Abroad?
Why is Nigerian’s geographical structure different from Abroad?
We could go on and on…
The quick answer is, because Nigeria is totally different from those other countries abroad, plus we are a sovereign nation meaning we are free to employ whatever political structure or system that we desire. Not saying we have the best political system in place, I’m only answering your question on your Subject.
You just responded absolutely and in no doubt, Nigeria politics is different from abroad politics because that geopolitical differences made the country's politics different from others and so every nations with their own rule of laws.
Nigeria is also not the only country with corruptions of governments so OP should bear on mind that politics everywhere is a game of interest.
I don't think if OP has actually traveled abroad to have witnessed how they also play their own politics to be compared with Nigeria. So I don't really know that which he admires that so much with the insight the broad system of politics cited in the media that is full of hypes and not telling the truth where bribes has been deposited to hide the truth.
Maybe we can take a recall of the formal US president Joe Biden and the current US president Donald Trump, some says Trump is intoxicated with his political position. Biden was on solo.
There is no place really being verified to have fair leaders or decent political alliance and activities. That is why people get murdered even during election as a political event. Sure we can recall about two occasions of attempted execution of Donald Trumps during his campaign. Sure that is also not Nigeria.