Like all tools it can be used poorly and beneficially.
Restoring both the Commodore and the Volvo without the internet would have been a total nightmare (Volvo especially due to sheer rarity of parts, getting bits in from OS etc)
OTOH for children's education the single worst thing invented is the smartphone and social media. We have created a generation of kids with a 5 minute attention span. Who knows what they'll be like when they enter the workforce. Especially if they have to do office-based admin work. My co-workers and I grew up without smartphones, so we have good attention span. I can imagine me trying to train up a junior in this sector in 5-10 yrs time. Wow.
There's social media. It has its place, can be useful but can be destructive. Think cyberbullying. With what one views on social media, it is selective so in essence regarding news, you only hear what you want to hear. But its useful in having friends of different persuasions who can expose you to more ideas and one becomes a more well rounded individual.
Going back to Australia and what I think is wrong with it is we basically live in an unhealthy society. Obesity, depression and anxiety all running rampant. There is not much out there in the way of preventative health either. Unless you have money, or very lucky to find a bulk-billing professional, you can forget about quality mental health care. I have seen clients at work who were scheduled, and bloody well needed it, and they are let out after being given some meds. Anxiety isn't helped by a hyperactive media reporting various 'threats'. Depression isn't helped by society/media saying 'you aren't complete unless you have XYZ'. In essence, human society has developed far quicker than humans can evolve to adapt to it.
An issue I see is far, far too many people live in Sydney, Melbourne etc. creates traffic, pollution and high house prices. People should be encouraged much more to buy owner-occupied houses in the bush - perhaps provide exemptions from stamp duty, subsidise interest rates. Businesses that can do so should be encouraged to go to regional areas maybe have a sweetener of payroll tax exemption or something.
On a personal level I see a lot of people judging others based on stereotypes and half-truths without understanding anything about the situation.