For that, we must understand how market networks and political networks function.
Market networks:
Incentives are mutual and evident
Governments have created ethical and regulatory /tax frameworks for running businesses
We have vigilant watchdogs in every area of business
Consumers decide the winners
Shareholders reap the benefits
That is why politicians can’t run their businesses based on compliance. They hate rules.
Politics networks:
Incentives are diverse and concealed
We have no such rules in running a political organisation
We throw biscuits at the watchdogs
That is why even clever business tycoons fail in politics
Voters decide the winner
Political parties reap the benefits
In short, the rules of the game are different in markets and politics. Nevertheless, political economy is key for businesses in any country. Political leaders make it difficult for intelligent businessmen to enter politics through ethical norms.
Only hackers can make it big in politics. Rule of the lane like in traffic won’t work.
Activity: A quick Wikipedia check on big business tycoons who have become politicians would help.