You are right when you talk about the influence of technology, because the way we see and interact with the worlds is through technologies. It means that technologies shape us.
But I believe you are being way to limited and simplified when talk about telephone. Morse code had much more impact in society, communication and mas media which has a huge influence on people, politics and society before the telephone. And sfter Telephone the screens.
Think that before Morse code communication took days, weeks and moths to reach some places. News was travelling on the speed of trains. If we use the US as example, some political thing happening in Washington used to take Months for the News arrive in the Sought States. Because of that newspapers used to be much more analytical, with long texts and deeper thoughts about political and economical issues. People used to be more engaged and curious about political debates among candidates. But after the morse cose news became less about bring information and more about being the first to tell a story. Information became less analytical and more factual, after all we can not do philosophy and deep thoughts through Morse code, it is about being fast and short. And the more people become bombed with information the less deeper they will be engaged and debating about things, thanks to the radio, TV and now Internet.
Today the screen media is the one that dominates communication, and the language of the screen is the entertainment. And entertainment is the language of distraction, quick shallow thoughts and fast changes all to keep our attention. Otherwise it becomes boring like philosophy and deep thoughts through morse code. This is why politics, news and even education is today before anithing else entertainment rather the actually politics, news and education.
But the communication media is just one aspect of it. The other aspect is the transportation technology development that turned people more and more materialist which impact also in the politics and economics. But I will stop writting here.