nice interpretation, maybe
but we should consider also that
such an "evolution" [the image included] is employed to show the transition from the phase of animal/monkey to biped homo sapiens [with vairation according to the theme: but all of what ive seen so far suggest evolving to a higher intellectual phase...ill check for some examples...]
so..
is the homeless man a monkey, univolved? one might ask this question


for me its an example of ad that can be easily deconstructed in negative
like the ads for slovak telecom playing with the symbol of the spiral:
[+]the people walking in park, along the spiral = [-]people wondering without direction
[+]parachutistes keeping hands and thus shaping the logo = [-]free fall of a company:]

all is a matter of interpretation, afterall
but some things can be easier deformed....