I strongly agree, and have been involved in companies where "move fast and break things" was taken too far, and developer-years of effort was burned due to poor

I strongly agree, and have been involved in companies where "move fast and break things" was taken too far, and developer-years of effort was burned due to poor engineering investment. There is a time and a place for quickly hacking stuff together, but it has to be done with consideration. It is a short term gain, with a long term cost. If you are constantly breaking things, then you never get to MOVE ON. Good code is an investment. Invest in it, and let it create value - and build on that value - while you move onto the next thing.