Issue with adoption by more countries?

I was just thinking about how Bitcoin being adopted by more countries will be great for the currency and the price.

Then I realised, as more countries/people adopt it, the price will continue to rise and then this will actually disincentives new countries from buying in.

Say if you are the 10th country to buy in when BTC is €1mil per coin (totally making up figures here), you will have such little buying power compared to countries or whales that bought in early.

Then whales/foreign countries could come in and buy massive amounts of lands or goods in your country.

Does this make sense or am I missing something?