Politics before wasn't as dirty as this. In the old days, politics was more of the inclusion of social clubs, the patronage system and an expression of opinion through art, literature and architecture which made those who weren't enfranchised( women and and non citizens) to also have a sense of belonging, unlike how we have it now.
I don't know what it's like in your country, but in my opinion, politics is the source of corruption, lust for power, evil...It can be said that politics has been dirty since its inception until now, not just dirty in recent years.
In the past, due to people's ignorance and technology not being as developed as it is today, they could easily hide and cover up all the crimes they committed. But with the development of technology today, their dirty things cannot continue to be hidden and we have a more realistic view of politics. If we had no internet, no smartphones, no social networks...I believe they would still continue to deceive us and we would not know the dirty things of politics.