I wouldn't mess with them. Until the eggs start to rot keep incubating them. They don't need candled every day, week, or month cause it sure as heck is not going to positively affect the outcome of the clutch. Yes, I candle them after being layed to make sure they all have veins and when possible make sure the ones without veins are not connected to a good egg.
Can anyone tell me how candling eggs multiple times can have a positive effect on the eggs?
It doesn't, It is for the sole purpose of giving you a warm and fuzzy feeling.
Of course it doesn't affect the clutch, positively or negatively. I candle mine every time I burp the tub to see how they're doing.
Can you say why it's bad to know how they're developing, or are you just being pompous?