For example none of the Indians I know ever said their country will become rich if all the undisclosed wealth is siezed by the government. The reality is there is way too much corruption and the majority of the ill-gotten wealth is in India. In all but the biggest cities the real estate is not priced to market per the government and so the property is registered at 1/4th the value (for e.g.) and so taxes paid on only that amount. The rest is not disclosed and reinvested into the real estate market. There is a lot of that going on. What ever the Prime minister is doing about talking to Swiss officials is just posturing and he is also sure that not much is going to come out of it but some political victory.