But everybody should be equally able to defend themselves, or sue before a court of law, which is clearly not the case today in UK and most countries on the planet. The legislator has created complex laws that only benefit people with a lot of money thus lawyers. Which means that citizens do not have equal rights in a court of law and can't get a fair trial.

It's just like tax avoidance. It's expensive to set up but ultimately it results in rich people paying LESS taxes/wealth than poor people for those who can afford it.