Its literally manipulation of those who have money to spend them on product they otherwise wouldn't, has absolutely 0 relationship on quality on the product (in extreme cases it goes directly against it). Word of mouth, unbiased reviews (yes, they cost something to keep the interference away but save you tons of money and time down the line). Its 2024, we are more connected than we probably should be. Manipulation always = lies, it doesn't matter how you wrap them around. We all have moral compass (barring sociopaths/psychopaths et al), and we all have opinion on such behavior.
Sure its like nuclear armament, once one does it many feel they also need to do it. But its purely emotional business on both ends (customers and companies feeling the need to pay for ads), where literally the only person truly winning is the advertiser (something about selling shovels during gold rush). Mankind as it is only loses, I don't see any way its morally justifiable. Even having less services say online available for free ain't a losing proposition if you look at long term damage of advertising.