Thank goodness you say e dey favour person wey hold am. Imagine a business (private entity) accepts Bitcoin as a form of payment, and in a nation like Nigeria where we operate a mixed economy system, the capitalists or private owners of production also contribute to the economy massively and we all know this. So if a company dey hold Bitcoin, as e dey benefit the company, in diverse ways e dey also benefit the nation economy.
Now even with that been said, some other ways Bitcoin can favour the economy of Nigeria is when it comes to currency devaluation. Imagine a currency like naira that it's price or value changes and depends on the dollar rate. If private businesses start operating with Bitcoin, you'll see that even if the price of the naira devalues, the coin remains intact, helping to maintain the profit structure of the company or business.