It's really nice that you feel that way, but I hope to hell I don't need to use software you designed. "Look and feel" and "Aesthetics" are core components of usable computer software, and consistency is the way you enable users to consistently use your software.

Setting aside the purely utilitarian aspect of being required to use a piece of software to do a task or as part of a job, consistency increases efficiency by reducing the amount of time spent understanding the deviations from expectation in the user interface.