Do economists share any culpability here? I thought their job was to apply their sharp minds and apply "systems" to achieve certain goals (not limited to addressing poverty). What if we compare it to other sciences? Say we didn't understand flight as well as we do, and we have this problem where planes keep crashing, maybe 2-3 a year (like it was in the 1980s-1990s) and instead of getting to the bottom of it and fixi…
What these all have in common is they are merely descriptive sciences, not engineered solutions to specific problems. Understanding how something works currently, is not the same as having the tools to make it work better.
To use a similar example to the one you gave - the common cold is one of the most common and well-studied illnesses known to man, but there is no vaccine for it. Lazy scientists? No, it's just that not every problem has an easy solution.