My wife is pre-menopause so I masturbate regularly to keep my prostate healthy and pipes clear.
I practice edging so I can move more semen out to clear out the plumbing well to prevent any back up residuals that might cause problems down the road. Personally its about the quality of the ejaculation and not frequency. Sure I might be too horny sometimes and edge myself 2 or 3 times a day but only because sometimes I have too much time and nothing much else to do
Bear in mind that studies have pretty much proven that the lack of ejaculation (let alone sexual activity) for men after the age of 45 is one of the leading causes of prostate cancer amongst other reproductive conditions eg. erectile disfunction.