Well, that's some idea for sure and it's a good thing your thinking towards abetted world and not just folding hands. For this, I applaud and encourage you!

Though, one thing I know for sure is about humanity is the fact that, man will always want to find a way. Most times, the looted funds used by politicians in office for the acquisition of certain properties are mainly funds gotten from contracts and not there salaries alone. In the case of trying to keep them away from accessing these funds, you directly hinder any form of developmental ideas with regards to infrastructure and basic/social amenities and one wouldn't want that for a country. Hence, you give the free hand.

Now, virtually everyone or most persosns has three price. Given this notion, the individual in office could go about trying for officers with corrupt triats and even not within the political system. Even entrepreneurs that seek to expand there business. A partnership could be done secretly following legal processes or even buying of shares in someone else's name and the trend continues.

So, one can only try, through series of exposing the corrupt in office and pursue for justice because, we can't just fold our arms. While we hope that, one with good morals standard gets to occupy the seats some day and his predecessor follows suit.