Doesn't matter -- when the principals signed documents agreeing to incorporate, they simultaneously agreed to abide by the what the law says in regard to paying taxes due as the law requires. If they thought these laws were "unethical"... well, that was their chance to make a principled stand against them.

If you have an argument that describes how taxing profits is unethical in contemporary society, as they are legislated by elected representatives, I'm sure there are others beside me who'd love to read it.

But this is not the context we are talking about here. Spain is part of the EU and the so called "1st" world.

I'm not sure if you're being tongue in cheek or not, but the 1st world may have less repression and human rights violations but it doesn't have none. And member states have invaded other countries in recent memory, have been involved in torture, institutional racism, etc.