When it comes to the topic of stewardship the situation is less clear cut from my point of view. I think there's a (very human) feeling of "I've created this toy so I get to decide". In part it's a good attitude: if you managed to develop it this far there are good chances you'll be able to develop it further. But sometimes it makes people a bit blind when something better comes along.
In that sense using technological reasons, or the cause of free software, seem to be more of a way to (maybe not on purpose) push away whoever wants to change the way things are run. But that's purely a gut feeling.
Incidentally that's what I tried to convey with "elitist arrogance". This kind of "we know best" and "who are you? what are your credentials?" attitudes. Though I am not surprised it only made thinks more confused to a reader. Sorry about that. :)