100%
Genetics is a massive deal, and humans have been honing the genetics of different types of dog for millennia.
A mate of mine bred a working gun dog litter. He stressed to everyone who wanted one what hard work they were going to be, quizzed future owners etc. About a year down the line he got a call, telling him he needed to take this one back as she was snappish and aggressive. He'd said he would, so he did.
There is nothing wrong with the dog at all. Since she arrived back with the breeder, she's lived in the house but been trained and worked in line with her genetic drives. She gets on with the other dogs, she lives around livestock with no issues, she's fine with guests in the house, and is turning out to be a great worker. She was just in completely the wrong environment, despite the breeder's best efforts.
People need to really think hard about what sort of dog they can manage, and understand that what is on offer isn't just a generic 'dog' that comes in a variety of costumes, but that even in show lines where the inbred drives have diminished somewhat there will still be a breed bell-curve of behaviour and any puppy is likeliest to be somewhere in the middle.