I wish this was true, but plastic surgery has made great strides over the last decades. It is, as of now, perfectly plausible to hide scars in most scenarios. All they need is enough money to afford a good surgeon.  My obese mother had had several surgeries (because she's super healthy) and decided to get a lipo/abdominoplasty/eye bag removal in just one "sitting" as a "reward". Her surgeon was very young, but did a stellar job, she suddenly looked 20 years younger and she actually left the table with far, far less scars than before. The whole procedure took only 2 thousand dollars (in local currency) and she was checked out of the hospital in 48 hours.  Of course, she gained all the weight back and more, then had another lipo and gained all the weight back and more again. But, other than that, no scars left.