If it were cheaper to bribe Singaporean politicians to buy Wireless spectrum, everyone & I would have done it.
Unfortunately in a small government like Singapore, ministers & bureaucrats are paid ridiculously high salaries (> 1 million SGD) even while maintaining very low tax rates.
So bribing is ****ing costly here. For most matters like wireless auctioning, it is cheaper to just go to the auction and buy it at market rates.
Moral: Don't expect people to shoot themselves in the foot for the common good. Just make it cheaper for them to do the right thing.