Bitcoin fits into the puzzle as a global currency because of various reasons. The most important is that with bitcoin, fraud and theft can be easily tracked in that each transaction has a timestamp. Unlike fiat, one can steal whatever amount and walk away without being caught.
Bitcoin brings transparency and ease of transaction to the table.
Hi @Tomlee thanks for joining your voice to this conversation. All the cases you've pointed out makes Bitcoin even more appropriate for the job. Cheers!