Is a religion better for being well-behaved or for being truer?
Is a "better" religion one that improves people's behaviour (pragmatists would say so!), or is a better religion one that is close to the truth (idealists, unite!)?
Religions that are appealing probably fit in the former category, whilst potentially dry and academic religions (and science) fit in the latter case. I reckon the 'masses' will nearly always hold dear religions that are mostly appealing and only secondarily accurate.