But Rail Is Better

It's certainly the case that intra-city bus travel has some dumb social stigmas which take away from its appeal, but it's also the case that generally rail in any form is just a more pleasant way to travel. Buses can be relatively unpleasant to ride in. Yes, there are the idealized BRT systems, which can have many of the benefits of rail, but the idealized BRT systems usually don't get built as while they tend to be cheaper than rail, they aren't all that much cheaper, and there are always way to chip away at the advantages to increase the cost savings. But, yes, rail is more about urban transformation than simply providing another way to get around. As long as that urban transformation is allowed to happen, then it is probably "worth it" in many places.