Contrast this to almost anyone nontechnical getting stung by compromised Windows systems, and even taking in account the smaller Mac market share, it shows that OS X is more secure in this regard.
No, it does not... Viruses are a free market game where you have to follow the money... THE ONLY thing this shows is that the cost-benefit calculus for virus writers still places Windows at the top...
OSX users ascribe to this bizarre mythos that Apple hired infallible superhuman programmers while Microsoft had cavemen banging rocks together... resulting in OSX being magically more "secure" than Windows. In reality, every i-device has been jailbroken to hell and OSX machines are consistently the first to go down first in the Pwn2Own competition. Any of those attack vectors used to win the competition *could* have been equally used to write a successful virus. This is further supported by the fact that Apple routinely releases security updates. If their OS was invulnerable, there would be no need to patch it! Any one of those critical vulnerabilities *could have* at one point been used to hack your Mac! The *only* reason it wasn't is because nobody bothered to take the opportunity. Think it through!
There is NO SUCH THING as a secure operating system. Privilege elevation works identically in both Windows 7 and OSX (i.e. both have identical potential to be infected by a trojan). Critical security updates are periodically issued for both systems, so we know that they both have their share of fresh attack vectors. The *ONLY* reason that OSX machines aren't routinely exploited is because the market forces haven't *yet* tipped the cost-benefit to virus writers away from Windows!
P.S. Windows is fairly battle hardened compared to OSX and includes several advanced security features (e.g. ASLR) that are not yet fully implemented on OSX. The Barbarians have been at Microsoft's gates for a long time... it is foolish to believe that OSX will fare any better as it becomes a juicier target!