How can it lower crime rate in a country
Contrary there exist individual that have started taking advantage of Bitcoin privacy and Lauder money or are involve in cybercrime.
It could help in assisting the economy, boost security of funds and serve like an asset like land. I'm not sure it's ready to contest with fiat as a payment method because of its growing transaction fee but as a store of value, fiat stand no chance.
Edit :Just found out you created the post twice instead of modifying and making corrections to your mistake. I would advice you inform the moderators about it to prevent any issues.
Well maybe locking the thread may help not really knowledgeable in it.