That's the whole point of cloudy businesses. They can masquerade it under whatever pretense but the end result is that they want you to use more and more hardware resources where each abstract hardware unit gets healthy profit margin for infrastructure suppliers.

Skipping cases like Facebook, Google, Netflix scale most of real life businesses can chug along just fine on dedicated servers with the software written in "normal" high performance languages. You would be surprised what $10,000 worth of modern hardware with high performance software can achieve.