Whatever deviation there is within each persons monitor would be consistent, instead of compounded to the difference of your uncalibrated monitor. Editing images needs to be held to this outside standard to maximize the quality of the output.obviously this would only help standardize things among people who have also profiled their monitor
And Huey and Spyder make some solutions starting at only $50, which is one sixth what Lightroom costs. Win 7 has a calibration utility in the control panel which actually works pretty well also, which is free if you already have Win 7.