You have to live in Eastern Europe for a long period of time to understand how people make a living there. And after you did you may accept that life there used to be different and it will always be different than in any Western European country. And yes, you can make a decent living with the salary from Wizz Air very easily. It all depends on your expectations and lifestyle. There are many other things that are cheaper than in Western Europe (rents except Bucharest, all services and utilities, petrol, dental clinics, etc.). Supermarkets can be as expensive as in Germany for example, with some things being even more expensive.