All these things OP have mentioned, avoiding them is never going to make you rich, so your list is a joke. Every rich man I know and even the ones we know today as the world's richest men, none of them got to the position they are today by avoiding to pay their tax or avoiding to get marriage, etc. But they are still rich. It's hard work and grace that will get you to the top and not all these things you have written here.
And as for people getting a divorce and losing half of their wealth, well that's their business. Marriage isn't something you jump into, the process should be step by step unless you will end up getting married to the wrong person and when you do, at the end you're still going to divorce.
Don't paying your taxes is just going to help you in getting a step closer to going to prison. Paying taxes makes your country strong which directly benefits whatever you are doing as there will be development all around the country and that will increase number of jobs, the economy and the value of money that you hold and potentially the money that you are going to make in the long run.
Taxes in the real world is included. This is the payment for the community to the government to have a good, safe city and clean environment. The tax has a huge use and impact for the improvement of the different country this cannot remove immediately. If you want to be rich and get a lot of money, you just focus on earning and avoid some loss of income, don't buy things you won't need in your life. But I thought this is very impossible a normal person in legal age and separated to their parents has a huge responsibility for their selves. Because now they need to pay house, electric bills, water, foods and another basic need of a human and if you are getting lucky if you can buy your wants. It depends on your lifestyle and faces the problems, by your hard work you can be rich.