Actually Education benefits company and the country where you work more than you see accumulation of taxes over the years: After 4.7 yrs of (Education 1.5 + work 3.2 yrs ) you can start Earning again.
Calculations: In addition to income tax, 22% tax on spending you have done.(detail see link below)
last scenario best case you are back to zero but company got better labour country got Income tax: 11,000 X 3.2 = 35,200 as taxes. (All taxes goes into benefit of local economy)
Tax on spending @22.5%= 0.225 X (7,200 X 3.2) = Euro 5184.
Total Tax amount paid to government after 3.2 yrs of work= 40,384.
What you have in pocket after 3.2 yrs of spending and working hard= Zero.
So after 3.2 yrs of work + 1.5 yrs Education: practically you will start Earning.
Only 4.7 yrs after.
For Details you can see: