I haven't been to the Agile conference series in the last few years, so this is based on several-year-old impressions: Most of the attendees are not be people

I haven't been to the Agile conference series in the last few years, so this is based on several-year-old impressions: Most of the attendees are not be people "buying" agile; they are (like you) "selling" agile. A great many of them could be described their work as "teach/train/mentor/coach technology teams into becoming high performing teams".