I think you have your priorities wrong if you think suggesting higher end PSUs over lower end ones is bad advice.
When we consider below average use, consists of casual gaming, no overclocks, and little to no stress, then yes. The rippling of current is going to fry the components before your PSU dies if you else wise. Let alone, with the failure rate of the lower end PSUs, you'll be spending more in the long run when compared to a higher quality one. My HX650, which is able to substain loads up to 800 watts with good ripples, is going to last me well into my next 2 builds. That is nearly 6-10 years of PSU use with no failed components due to poor ripples while capable of running the best crossfired or slied single GPU cards on the market, and solid overclocks.