'importance and impact' is correct and usable in written English.
You can use it to refer to the significance and effect of something. For example, "We discussed the importance and impact of new technology in the workplace."
Esarey argued that Jennings "took no decisive stand" on the important issues and dismissed his importance and impact on Indiana, saying the legislature and its leading men set the tone of the era.
Which party or party coalition controls the government influences the relative importance and impact of interest groups within society.
Falling Out of Time is short, and clearly a deeply personal book, but its importance and impact ought not to be underestimated.
They bring to life the rhythm and momentum of skateboarding, highlight the importance and impact of a well-timed landing, and engender the precise focus that will be familiar to skaters across the world.
It's particularly critical now that the government ensure that all voices are heard in formulating policy and making decisions that are bound to be historic in their importance and impact.
Instead, the importance and impact of social media on each of the rebellions we have seen this year has been defined by specific local factors (not least how people live their lives online in individual countries and what state limits were in place).
The importance and impact of the majorization theory to inequalities can be found in [11].
Clearly, CSR is a concept that has endured and continues to grow in importance and impact.
This importance and impact is greatly amplified in a setting where resources are limited and no CT scanner is available.
Agriculture is a key human activity in terms of food production, economic importance and impact on the global carbon cycle.
"We think tech startups are impacting more and more industries and sectors so the importance and impact of great founders is growing.
