Firstly, I support QDCLover's point absolutely. There is a second issue that other commenters have raised which is why should anyone worry about these claims, which should be addressed.

To be blunt, corruption is bad for society.

Economically, corruption doesn't mean that a country will have low economic growth, plenty of corrupt countries have high growth but it does have bad consequences. Some of these are that overall there will be lower investment in the economy, that prices paid will be higher for consumers, that talented workers will be drawn away from economically useful activity to corrupt rent-seeking activity (to maximize their income, that resources are devoted to uneconomic and unproductive activities, that public monies are wasted or revenue to the public coffers are reduced and that public welfare is put behind personal gain for public officials. This is no victimless crime, everyone suffers.

Then look at it from a personal perspective. Can you respect and trust someone you know to be corrupt? Do you want your children to know that corruption is okay? Do you want everyone else in society to receive a clear message that corruption is okay because the big fish openly get away with it? This signal means every other person with a little power feels comfortable to take their slice. Do you want justice to be based on who has the money? Do you want the life-saving treatment denied because you can't pay the doctor, nurse or pharmacist/ Do you want your child's academic progress to relate to their abilities or to the depth of your pockets? Do you want to see your kid come ten in their class when they are the best but you are as well off as others?

As responsible people we should strive for the best, support the good and oppose the bad. These matters should be investigated, the guilty punished and the innocent exonerated. This should happen in Qatar, because it involves Qatar, its future success and the esteem of the people for public officials.