I don't buy this (pun intended). You may be able to buy an electorate once, maybe even twice but four times is a little hard to swallow. One of the major reasons for his popularity is not bought votes. It is because he put some of the poorer regions on the Thailand Map rather than ignoring them in the hope they would go away.
As for the courts, you will of course be able to explain away a 5-4 guilty verdict when the Chairman, who has the casting vote, must vote innocent if the others cannot come to a decision. Not that this particular case should ever have reached court in the first place.