this assumes you can generate profit before you can get optimized - what if profit generation is only possible with optimized software? A lot of online MMO-style games tend to require such optimizations as they scale into the size required to generate profit.
Or, in the current era of ai, the cost of the capital investment is far exceeding the ability to generate profit off it. The optimization in how the resources gets used will be needed to cut the costs down, and allow increase in the scale of usage for the same hardware. That's where profits would lay.
Of course, in order to achieve any of this, you'd need the runway to survive until such times. A small scale operator won't have this runway, and so die before they can accomplish anything profitable (or get big by begging for investor money to grow large - as we've seen in the past 20 years of tech).