If more people invest in Bitcoin, the price of Bitcoin and its distribution would increase. Thus, it would improve people's wealth. If ordinary people get in before all of the institutions, it allows us to front run big money.
Further, if Bitcoin's distribution increases, it will be less volatile. Bitcoin whales would have less control over the market and would think twice before dumping the price.
The country would be better because people will have an alternative savings vehicle with a fixed supply, growing demand, and less control by central banks and governments.