Not sure how bitcoin created job for the people like you say. There were jobs for people before bitcoin was invented. The same jobs are still available today. Nothing has changed in the job market. Just the payment system (but i doubt most of the would prefer crypto currency as their preferred payment receiving method as it becomes complex for them to convert to fiat and stuffs). But it did open up the borders. People can now easily transact or send coins from one country to another without any problem or restriction within seconds. So cross border transaction is one the opportunities crypto currencies have created I would say.