Management often views software engineers more like machines that spit out code rather than actual engineers who design software. I can't tell you how many projects I've been on where someone up the ladder is unhappy with the time estimate given to complete a feature so they either bring on a contractor or pull a team from another project

Invariably, the additional "help" makes a giant cluster fuck and the people who are actually familiar with the code are now stuck having to scrutinize every PR and fix a ton of defects rather than contributing to feature development. Then the feature takes twice as long to develop as originally estimated. Management scratches their head, shrugs it off, and repeats the same mistake the next time.