Indeed. Developing countries might have more successful businessmen, programmers, entrepreneurs, etc., If they all have a fast internet connection. Having a slow internet connection or having a bad Internet service provider will not give you enough opportunities to keep yourself grinding in the world of crypto or your online business because you will only get limited access or will slow you down to keep your job done.
Now we have quality internet connection in every nook and corner of the world. Earlier, the internet users were dependent on broadband connection. It was expensive and the coverage was sparse. But with the advent of 4G, cheap mobile internet became available in remote and isolated regions. But in order to develop successful businesses, a fast internet connection alone can't do the trick. You also need skilled workforce, government support, good connectivity.etc.
good conectivity and fast internet is the same but you said internet speed is not the basis of success which is also true because there are people on far locations that are still succesful on their career and there were people that grown in a good life but they are uneducated or unemployed . the way you said connectivity, maybe you mean connections to other people .connections are also essentials to success because you can ask people or people you know can recomend you if they see that you have a skill on that area .
Maybe in the world of crypto he mean for that, because to be honest internet connection is the top requirements to avail, to access and to connect to this kind of business. For me, having good internet speed or connection can make me more enthusiastic to this kind of business because I can see a great future on this.
When this pandemic starts, almost people look for other way to earn money, because most of us cannot go to work or lose their work. If you really dig in, you can see there are lots of opportunities behind this, all you need is patience and more understanding.