Good for her.
different people want different things. 100k isnt what i consider enough money to live in australia - things are too expensive
it is good for her, if she wanted more money she could take a side job considering she works 4 days and has all of that time in the holidays.
Also, when my dad was still ~around~ the family income was ~$220k and my mum was making a fair bit less than she is now, and we had like a boat, a bunch of tvs, a pool and spa, and a whole bunch of random shit we don't need.
We still have a whole bunch of shit we don't need. $100k is actually pretty decent.
Like, there is nothing wrong with government jobs, you have no sea what you're talking about.