Sure, but cards are even more centralized.

The "feature" of WeChat is that it can be used for almost anything. It is a cash successor more so that a card alternative. Anyone can print, display or scan a QR code. Doesn't matter if it is a store, a friend or a random person. Doesn't matter if it is in the physical world, on a website or in a chat. And it is easy to do. And almost everyone uses it.

Contactless cards only matches WeChat in the same way something like Apple Pay does.