I’m not claiming anything. Transparency International is. They are a well respected organisation, but certainly take it up with them if you disagree.
Likewise, you personally may disagree with these findings. Again, they are not my findings, but they are generally replicated across the bodies that produce rankings on these issues. It’s doubtless inconvenient for your arguments, but it is what it is - Japan, Canada, Norway, Sweden, Denmark, the UK, Australia, New Zealand Luxembourg and the Netherlands etc all regularly come out very highly in surveys of stable and prosperous states. So where’s the incentive to radically change our government?
I think you might be confused about Commonwealth countries, @Novella4 The 14 countries that still have the Queen as their head of state are all at various points along the path to independence and self governance, depending on sentiment in their own territories. That seems entirely normal and expected to me - I would be very surprised if the UK sovereign remained the head of state in any foreign states in 50 years time. The journey to national self-determination is an entirely different matter to popular views of the UK royal family though.
They are certainly not removing the royals as fast as they can, either - that was a more accurate description of the situation in the 60s and 70s when 20 states transitioned to full independence (despite the Queen herself being internationally well-respected in this period). And almost every single country that has chosen to remove the UK monarch as their head of state has voluntarily chosen to remain in the Commonwealth, as they see the ties it brings as desirable. In fact at the last Heads of Government meeting two new states, with no historical ties at all to the UK, sought membership. It’s a wholly voluntary organisation, and membership is clearly seen as valuable.