Why is there a state contribution?

That's only partly true:
- You are ignoring the tax free lump element of pension schemes
- You are ignoring the fact that some retirees maynot be liable for any income tax in retirement or may only be liable for income tax on a small portion of their retirement income.
 
€100k earned this year, tax approximately €25k
€50k deemed earned this year; €50k deferred until pension, tax approximately €13k
Plus the points @Conan made. The pensions industry is not built on a total scam
 
The government aren't "contributing" to anyone's pension. The government don't create any money/wealth, they appropriate from one party to another.
It’s conceptually very different. With AE you will pay tax on your income, it gets put into a big pot with every tax, including things like VAT and corporation tax, and some of this pot is contributed to your scheme.


With tax relief at the moment you are basically getting your own income tax directly into your pension fund.