NAND is more complex than AND, in the sense that it is more expressive than AND (having functional completeness which AND does not).
Similarly, it can be built from other less complex operators (AND and NAND).
If you're taking "One thing" to the extreme, in terms of the granularity or complexity of that "one thing", NAND is not as granular or simple as AND - and therefore isn't taking it to as far "to the extreme".
NAND is more complex than AND, in the sense that it is more expressive than AND (having functional completeness which AND does not).
Similarly, it can be built from other less complex operators (AND and NAND).
If you're taking "One thing" to the extreme, in terms of the granularity or complexity of that "one thing", NAND is not as granular or simple as AND - and therefore isn't taking it to as far "to the extreme".