That's good that it motivates you. It doesn't motivate me any more. I'm not interested in "investing" more time for the reasons I have said.
> the taxes paid aren't burned, they mostly go to things I care about.
I'm pleased for you. I'd like to put more money towards things I care about.
> The income tax rate isn't all that relevant to the costs and benefits of starting a company
I am just less positive than you: it feels like win you lose, lose you lose bigger. I'm just pointing out that our government talks about supporting businesses but I've seen the waste from the repetitive attempts to monetise our scientific academics.
> The rewards for founding a successful company mostly aren't subject to income tax
Huh? Dividends are income. Or are you talking about the non-monetary rewards of owning a business?
> NZ has a very light capital gains regime
Which requires you to sell your company to receive the benefits of the lack of CGT. So every successful business in NZ is incentivised to sell. NZ sells it's jewels. Because keeping a company means paying income tax every year. NZ is fucking itself by selling anything profitable - usually to foreign buyers.
The one big ticket item I would like to save for is my retirement fund. But Labour/Greens want to take 50% to 100% of capital if you have over 2 million. A bullshit low amount drawdown at 4% is $80k/annum before tax LOL. Say investments go up by 6% per year and you want to withdraw 4%. Then a 2% tax is 100% of your gains. Plus I'm certain they will introduce means testing for super before I am eligible. And younger people are even more fucked IMHO. The reality is I need to plan to pay for the vast majority of my own costs when I retire, but I get to pay to support everybody else. I believe in socialist health care and helping our elderly, but the country is slowly going broke and I can't do much about that. I believe that our government will take whatever I have carefully saved - often to pay for people that were not careful (My peer-group is not wealthy so I see the good and the bad of how our taxes are spent). Why should I try to earn more to save?