What happen when the big business industry of stearic candles fall against electrical/gas light bulbs? One was hyper developed and fall badly, the other was not

What happen when the big business industry of stearic candles fall against electrical/gas light bulbs? One was hyper developed and fall badly, the other was not ready to grow at the same fast peace of demand. That's just as a single example. The main point is: civilization changes, normally not so fast, but they do, and normally most are not ready and adverse any change, no matter if good or bad as a result we end up always in rushes. As a result scarcity, precarity, FUD happen. The key is an ancient Latin phrase "in medio stat virtus", or for the present topic being too efficient is not efficient because generally means not being flexible nor capable to evolve. On the other side of the spectrum we have seen in IT how hard are distributed systems respect of few centralized ones. In medio stat virtus again, we need a bit of efficiency and a bit of flexibility, and yes, it's not that easy, and yes it cost money.