The reader of the information is in a position to consider the totality of the circumstances and decide what's relevant and not.
What a load of cock you're writing here. Google doesn't discriminate between what is relevant and what isn't. When someone googles you, they only get notable facts not relevant or irrelevant ones. The irrelevant ones ("loves his mum, is good with children and animals, reads widely") isn't there. "used to binge drink in his 20's at the weekend" can be discovered, but "now in his 30's just has a glass of wine with dinner on Saturdays" isn't.
And how often have you known a newspaper or media company go back and revisit a story it got wrong to re-release it with all of the correct information? ALMOST NEVER unless threatened with a law suit and very few people can afford those. Controls on information are sorely needed if only for the simple reason that people change over time but the information available out there about them may not.