How Much Help is Help?

My friend insisted that I should be informed that:

(A) Singapore Government has donated S$500k to Japan for the recent disaster. HERE.

(B) Daughter of Billionaire Businessman has donated S$1mil to Japan for the same disaster. HERE.

The disparity is shocking.
How can a private individual be donating more than the Government of a wealthy nation?
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But then again, this is probably one of the more generous donations that the Singapore Government has made in recent years to countries suffering from natural disaster.

Remember the Earthquake in Haiti in 2010?
Singapore Government donated US$50k only.

The Sichuan Earthquake in 2008?
Singapore Government donated US$200k, while private SG donations were up to US$8.5mil (with US$7.3mil via the Mediacorp Charity Show).

In addition, Singapore Government sent SCDF into disaster zone and supplies worth more than a few hundred thousand dollars.

(It's quite funny to note that Saudi Arabia did its part by simply donating the largest amount of money, US$60mil. "Nah! US$60mil! Please rebuild your homes.")

So, relatively speaking, the Singapore Government has been really generous with the 2011 Japan Earthquake, even though many feel that it's still overwhelmingly little.
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Now, the key problem I see is why Mediacorp has not reacted to the 2011 Japan Earthquake with a similar charity show.

I think it's because:

1. Misconception that Japan is a wealthy nation and therefore does not require as much help.
2. Japan is not 'related' to main Singaporean races, e.g. not Chinese
3. Japan, being Japanese, has not asked for help like other nations do.
4. Mediacorp is currently halfway through preparing for President Star Charity <<< Aiyah... Cannot switch charitable intention halfway... All the footages, backdrop, logo design and scripts have to change.