Engaging in the basic level of interaction with society is not a act of good.
NOT being blindly destructive is not a act of good.
Being selfish does not preclude working within a society that enables one to exist if one is relying on that society. (Especially if that society is itself evil.)
Fuck, that code is easier to live by then the paladin one in some ways. A antipaladin could very easily live in a good society. A paladin can't live in a evil society.
Those things? "I will stab you in the back if it serves my interest and I do not hide this fact. I am a champion of evil and even the very idea of doing good makes my blood churn"... "Yeah, clearly I trust you... ohh wait... no I forgot I have intelligence along with being evil".. "But I can help you"... "Only if it serves your interest, so I will know your always manipulating me and planning my downfall".
I'm trying to make sense of this, but it mostly appears to be a paragraph of gibberish? I'll just mention that a antipaladin by that code can do whatever they feel they need to in any circumstance.
Also Dungeons and dragons handles evil BAAAAAADLY! To the extent where they often just ignore alignment altogether. This is especially obvious with the "Chaotic Evil" Drow who have a non-chaotic Evil society... and are well organized... To the extent where I had to justify it myself by explaining that Drow live in a Cat Colony culture where they live close to eachother for protection and have little-no compulsion to kill eachother... and work together mostly at a whim but are otherwise cities of individuals rather then groups.
I'm not really aware of that many depictions of drow society outside of the Drizzit books, so to be honest, that has fully colored my perception of them. Just to state in advance in case what I am thinking is wildly off.
But. A society where laws are meaningless and only enforced by traditions that the whims of the powerful. Where you kill to get ahead. Where the organization flows top down from the threat of force of the powerful (with a literal god being at the top of the threat of force pyramid?)
That seems appropriate for a chaotic evil society.