They were hardly portrayed as the Human's "masters". Were that the actual relationship, there never would have been an NX-01 nor a Warp 5 Engine project. They were advisors who the Humans listened to, but in the end, the Humans did what they wanted to. Also, I think the ENT portrayal of Vulcans was spot on and well done. They took their ques from TOS (and episodes like "Amok Time" and "Journey to Babel" where we saw full Vulcans interacting with Humans.) On TOS they were very much shown as proud, sometimes arrogant, and always looking down a bit at other races who didn't share their wholly 'logical/dispassionate' view of the Universe.
Even in ST:2009.
"Spock is in front of the Vulcan Council)
MINISTER: You have surpassed the expectations of your instructors. Your final record is flawless. With one exception, I see that you have applied to Starfleet as well.
SPOCK: It was logical to cultivate multiple options.
MINISTER: Logical but unnecessary. You're hereby accepted to the Vulcan Science Academy. It is truly remarkable, Spock, that you have achieved so much, despite your disadvantage. All rise!
SPOCK: If you would clarify, Minister. To what disadvantage are you referring?
MINISTER: Your Human mother.
SPOCK: Council, Ministers, I must decline..."
A lifespan of 200 years - attitudes and opinions would take a long time to completely change
And.
"As a talented outsider with the full backing of the studio Abrams and his people succeeded. Enterprise's producers had been working on Trek far too long to see their way as clearly forward, and couldn't really break with the past."
Hence TATV, their 'valentine' to TNG fans - fans of their (almost) unalloyed success; the only fans that counted with them