No, not really, you can be a used car salesman who's smart enough to bring a more unlikable guy to the final tribal council to secure the votes in your favor.
And you can have some really head-scratching finals:
Warning Spoiler! Click to show
Most of the time, the most "deserving" contestant seldom wins because they have to work hard just to sniff the finish line, while others play a slightly different game of being able to not be in the forefront of people's thoughts when it's time to go to tribal council (while not being just "under the radar"), but rather have better people skills, or better game theory ideas put into practice in order to keep the target off themselves while offering others to be ousted before them in the game. Some are just plain lucky to "float" and still make it to the end by not being perceived as a physical threat, it's all tied in social dynamics, and just being a physical threat of winning immunity challenges or even finding HII's might not be enough to win when it gets down to 4-5 players left because you still have to work the jury, the people you had a hand in placing in the jury box through gameplay.
And you can have some really head-scratching finals:
Warning Spoiler! Click to show
Twila vs. Chris
Ethan vs. Kim
Sandra. vs. Lillian
Parvati vs. Amanda
Nelah vs. Vecepia
Todd vs. Amanda vs. Courtney
Jenna vs. Matthew
Yul vs. Ozzy vs. Becky
Stephenie vs. Danni
Earl vs. Cassandra vs. Dreamz
Ethan vs. Kim
Sandra. vs. Lillian
Parvati vs. Amanda
Nelah vs. Vecepia
Todd vs. Amanda vs. Courtney
Jenna vs. Matthew
Yul vs. Ozzy vs. Becky
Stephenie vs. Danni
Earl vs. Cassandra vs. Dreamz
Most of the time, the most "deserving" contestant seldom wins because they have to work hard just to sniff the finish line, while others play a slightly different game of being able to not be in the forefront of people's thoughts when it's time to go to tribal council (while not being just "under the radar"), but rather have better people skills, or better game theory ideas put into practice in order to keep the target off themselves while offering others to be ousted before them in the game. Some are just plain lucky to "float" and still make it to the end by not being perceived as a physical threat, it's all tied in social dynamics, and just being a physical threat of winning immunity challenges or even finding HII's might not be enough to win when it gets down to 4-5 players left because you still have to work the jury, the people you had a hand in placing in the jury box through gameplay.
This season is just classic. 
