Solid footing provides wisdom and righteousness. You can find people standing on solid ground by their humble and considerate actions. It's true that sometimes humble people are not as prosperous at the outset as those driven by selfish ambition.
But the prosperity of selfish and arrogant people is tied to the whims of people. And their footing is their own words. Whim and talk do not make good footing!
Don't sacrifice the good footing of wisdom and righteousness for a quick win. People change with the wind and your words will ensnare you to your end.
Humility and consideration of others always place you in strategic positions and open doors arrogant talk cannot.