no...if the big bang theory was correct than no one would even exist today..anything that would result from the big bang would be chaos meaning there would be no order.
Not correct. To simplify the things: first couple of ____ (insert the correct time unit here, I don't know if it is minutes, days or years) after the BB the processes were governed by quantum phenomena, not by gravity or electromagnetical forces. Quantum phenomena by itself are unpredictable, there is only a certain probability this and this will happen. So it is necessarry that the process of expansion is not a simmetrical process, allowing for concentration of particles in certain places of expanding Universe. After this period the gravity kicked in. In places where particles were concentrated gravity would start pulling them together, forming the ancestors of todays galaxies. The same process on a smaller scale created our Solar system. To make it short: BB does not imply chaos in any way.
If earth were any further from the sun it would be too cold to live in and to hot to live in if the earth were too close to the sun. I could keep going but my point is how can such order be created by the big bang..
There are life forms on Earth, capable of surviving sub-zero temperatures as well as life forms capable of living in temperatures up to a couple of hundreed deg C. Man can survive lower average temperatures as today's (ice ages), but cannot survive much higher temperatures (due to coagulation of proteins). If the Universe weren't precisely as it is, there would be no man observing it right now. But that does not mean other life forms are not possible somewhere else in Universe, surviving at very different conditions.