politicians and bankers removed gold as backing for paper money and created so the fiat money. Gold wasnt a currency at that point anymore.
Are you trolling me? You first said that politicians and bankers did not removed gold as money and now you say the did.
Yes kings devulated the purity in coins to make own profit but it turned out that it was very healthy for the economy since there wasnt enough pure gold coins in circulation to keep the market running.
This does not make sense from an economic point of view. The nominal value of money is arbitrary.