I think computational thinking is a good objective measure, and is learnable. That comes first to me. I also think acquiring & practicing computational thinking demonstrates will power, a willingness & capacity to tackle something, and that that something is valuable. And it's an objective, common, topical, & agreed upon/expectable test, one that doesn't rely on socially convincing someone in 5 minutes you indeed have willpower.

If you only think of this as trying to get good at Leetcode, I think you risk ignoring the actual lessons. Leetcode is an ok practicing grounds, but what's being tested relies on a mix of computer science and problem solving, and just going to leetcode & trying to get good there will probably eventually work out, but you'll miss the computer science that would actually be helping you.