CS does have a lot of certifications, which are generally regarded as crap by most university-educated CS people. Part of the reason is that a lot of certifications test you knowledge with specific tooling, and that tooling may become obsolete rather quickly in the field.
It's also worth noting that a lot of the tests you talk about aren't valued particularly higher by their own fields. Most lawyers I know have commented that the bar exam [1] primarily tests material that is largely irrelevant to the actual practice of law, to a degree that scoring too highly on the exam tends to be seen as "you wasted too much time preparing for the exam."
[1] The LSAT isn't a test of whether or not you've mastered law school material, it's a test of whether or not you are allowed to be admitted to law school in the first place. The bar exam is the actual necessary certification to be a lawyer.
It's also worth noting that a lot of the tests you talk about aren't valued particularly higher by their own fields. Most lawyers I know have commented that the bar exam [1] primarily tests material that is largely irrelevant to the actual practice of law, to a degree that scoring too highly on the exam tends to be seen as "you wasted too much time preparing for the exam."
[1] The LSAT isn't a test of whether or not you've mastered law school material, it's a test of whether or not you are allowed to be admitted to law school in the first place. The bar exam is the actual necessary certification to be a lawyer.