Ryujin
Legend
The problem I have with wisdom and perception under the same stat is that they are too far apart for one title. A blind monk that can't taste or smell can have 18 Wisdom (willpower, intuition), would you say he has an 18 perception. Plus it causes havoc with stereotype thieves, low willpower, great perception. They need to split bad, and in my campaigns they always will. I'm just surprised WotC hasn't figured their way out of this mess - the red flag should have been playtest 1 - a thief with 8 wisdom. I'm fine with that, now give him 16 Perception, don't change the skill system to fix a broken Attribute.
I really see no disconnect here. No more so than with the lazy 7 foot tall, muscle-bound fighter. The wise Monk can't see, but he can hear and smell remarkably well. I would hate to fight him in the dark. The Thief has poor impulse control (a character flaw), but is obstinate and resists mental spells remarkably well. Don't confuse personality or physical limitation with potential.