That's probably the most reasonable answer. In the end, the most important thing is that both can thrive independent of the other to offer the particular experience each rider desires.
As I've said previously, sportives have appealed to me for a number of reasons. The "almost a race" thing is a minor attraction but it's there. Breakdown support, though I've yet to need it, touch laminated chipboard. Organised feed stations, provided they are properly stocked.
I'd like to see it mandatory than all sportives make it clear how much of the entry fee goes to charity, if any. Many people are duped into thinking they've made a nice financial contribution to a cause in return for an organised bike ride, only to discover that the charity receives little or nothing direct from the event. It's all very well the charity knowing that and doing it for the publicity, but it's not ok to mislead the participants. (Of course, you could just do an audax and give the difference in cost to the charity direct, before anyone points that out!).
Back to the appeals for me... even though I often find myself doing large stretches of sportives without company, there's still a more social aspect to it than riding solo, which is what I do the rest of the year. I don't get to do many sportives (cost, distance from Edinburgh for an non-driver and other commitments see to that), so I see them as a "luxury" change from the norm, something to aim and train for.
Maybe at some point in time, I'll grow a big bushy beard, put a carradice saddle bag under my saddle and wear too short shorts in a nice shade of beige and do an audax.
Did somebody just say "out of date stereotype"? LOL