Offshore account, what is the point?

I have been searching the web for info on offshore accounts.
The only reason I can see to use them is to have them attached to an offshore company.
This requires registration and a secretary company of some sorts to make it a viable running company in whatever chosen low tax country it's set up in.
Which means putting trust in a third party... I have trust issues.

Just a bank account by itself seems to serve no purpose at all. ( a lower tax rate on interest perhaps ? )
Sure I can send money to it but New Zealand operates a " world wide income " policy.
No matter where the money goes, you will pay New Zealand's income tax on it.
Also any data held electronically I treat as a post card, anyone can read it.
Am I missing something here?

Cheers for the PM.
Sorry I can't reply as I need 15 posts.....

When you register a company on such island or place or whatever, you can hide your identity there. By doing so you are not obligated to the government of the country you are living now. Only if a special anti-offshore policies do apply which is not the case of many of the "civilized countries". Your government is not God, they cannot see everything, this is why offshore companies are made for. It is just that the greedy social welfare states these days are asking more and more portion of the pie so the politicians can sell their political propaganda and lies to the public by providing "free" whatever with the money they do no own. I hope one day we will all gonna live in a world with no interaction from the government and with an abolishing of all these "social" programs. Income tax is illegal because there are nature/God laws. All countries in the history trying to make this welfare/socialist experiments failed and all countries lowering their taxes and giving us true freedom succeeded, yet government still try to increase taxes. Just look how US is trying to become a more social-democratic welfare state where freedom of the trade doesn't exist, where the socialist government is taking everything it could to provide for the laziest for "free". I am stunned to see how this country is becoming more and more like most of the European countries. I live in Europe, you don't want this, trust me. People should revolt in the upcoming socialist intervention. Go offshore, fight back these government criminals!