Indeed. You learn in all roles that the only way to get your projects pushed through is to give overly ambitious timelines. If you were conservative or realistic, nothing would ever progress.

I've constantly been on projects where someone said, "This will only be a month of work for maybe 3 engineers." That project quickly becomes 5 engineers over a year because of empty promises.

That said, some of these projects frequently time a very long time because there's dishonesty in time estimates. If they were honest with estimates, you wouldn't have to cut corners. They try to cut corners to push a project through quickly - but it backfires constantly... Which leads to more work rather than doing the more effective and reliable part of lots of non-visible work before seeing visible results.