Corruption is relative.
for example the elite shia clergy and the bazari alliance
when you observe them by themsleves, they may appear corrupt and hypocritical.
when placed alongside the House of Saud,
they appear to be an example of piety, responsibily and trustworthiness.

but grant has no problems with the house of Saud,
for they have not verbally taunted and threatened poor Isreal,
and are good obedient pets of the West.