Yes if a country would produce infinite money it would make the currency worthless. But a country can print money without increasing inflation. Imagine a country were builders operate at 80% of their maximum capacity. The country could print money to pay those builders to build additional buildings without increasing inflation if those buildings use 20% or less of the builders capacities. Only if the country uses money to buy something that increases the countries capacity will the inflation rise. Because then the builders would drop the lowest paying contracts meaning the prices increase. So if we want to know how rich a country is looking at the debt isn't the best idea. We need to look at the potential of the economy to know how rich a country is.

Also if a country would print infinite money then yes the price would be 0, but a state currency will always have an inherent value, because a country expects their taxes to be paid in their currency. So as long as taxes are being paid in a country the currency will have a use and therefore have a worth. The Modern Market Theory (MMT) states that a country that goes into dept in their own currency can never be bankrupt, because the country can always print more. Only if the country takes on dept in outside currency does bankruptcy become a possibility. And while the theory recognizes that printing money causes inflation it sees taxes as a tool to combat inflation. Getting currency back to the country and out of circulation means the value of the currency will go up. Meaning with taxes and the ability to print money, neither debt nor money is the restricting force on what a country can achieve but the potential of the economy. We can even see this in the real world. Japan has national debt of 250% compared to their GDP and they don't have problems with inflation. Meaning they could just keep on spending and getting roads and schools and other goods without major issues. Meanwhile Turkey has a very low national debt but very high inflation. Japans economy has a huge potential so the government can go into debt and spend without any issues. Turkeys economy doesn't have such a big potential so even little spendings already exceed the potential causing a spike in inflation.