I've seen a couple ideas regarding changing case on names and the like, so this idea could probably get merged together with those.
What I would like to see is a flow step function to normalize a qualifying lead's data based on smart campaign logic, such as changing ALL CAPS entries into a string field like First/Last Name from disparate sources into Title Case, lower case, Sentence case, or whatever criteria we think necessary.
A natively-supported flow step like that would be like a handful of ibuprofen for the headache of database hygiene.