The above is countable and official salary. we have to
consider
1. unofficial income--corruptions,directly n indirectly,
2. retirement salary and subsidy during and after office. do SG
has pension?
3. who foot the bills on transports, during and after office.
SG's official
pay for their own cars.SG dunt has VIP aeroplane.sometimes, even
PM LHL take
C 130 to regional meeting. i have posted in this forum.
When you are corrupt, if you are caught you go to jail.
When you pay the politicians their rightful salary + corruption
money, there is no longer a need to be corrupt, the best part of
this is it's legal corruption. 
What's this bullshit about being hard to catch corruption
if it's from the top, there have been lots of Presidents being
prosecuted for corruption. 
"On pensions, the PSD said these are not calculated based on
total annual salary packages, and that currently only about half of
a minister's montly salary is pensionable."
http://www.asiaone.com/a1news/20070402_story11_1.html
You sure they pay for their own cars? Thought they have
Mercerdes Benz with chauffer provided and bodyguard provided for?

Take C-130 is because it's safer, because I am sure C-130 has
ECM as compared to your regular Boeing or Airbus. Do you know how
much it cost to charter a C-130 as compared to a regular business
jet? 