It is somewhat ironic that you use that language. This is what I say in my "canned" response for people with generalized PowerPC applications problems:
Unfortunately you got caught up in the minor miracle of Rosetta. Originally licensed by Apple when it migrated from the PowerPC CPU platform that it had used from the mid-1990's until the Intel CPU platform in 2006, Rosetta allowed Mac users to continue to use their library of PPC software transparently in emulation.
However, Apple's license to continue to use this technology expired with new releases of OS X commencing with Lion (and now Mountain Lion). While educational efforts have been made over the last 6 years, the fact is that Rosetta was SO successful that many users were caught unaware UNTIL they upgraded to Lion or Mountain Lion.
And there lies the rub: Microsoft Windows is backward compatible because it was always run on the Intel CPU platform. Apple did not make this change until 2006 and then only was able to license the underlying software required to make Rosetta, which license then expired.
Even if it had not expired, there are multiple arguments for eliminating Rosetta at some point. Just like with the Classic Environment found in OS X through TIger, a time came when it was time to stop making older Classic Software workable in later releases of OS X -- similarly about 6 years.
Let us not forget how Apple marketed Rosetta when it first arrived on the scene: