Basses are tools, made to create sounds and make music. Lets look at just the sound for a moment (not the level of construction, customization, where it was built etc.). Just sound and we listen to:
Paul McCartney, Pino Palladino, Jaco Pastorius, Bernhard Edwards, Paul Jackson, Anthony Jackson, Marcus Miller,... I dont think any of these Bass players sound incomplete, lacking or inferior (to alembic players). And I dont think they could even be improved when any of these players were given an alembic.
On the other hand, Alembic's craftmanship, custom options, attention to detail, materials used and so on is quite the best way a bass guitar can be made.
Still an Alembic will never sound and feel like a passive P-Bass. It might get close, but its not the same. But it wasnt even made to do that. Same goes vice versa. And why would you want that, when there are both,
Whatever floats you boat