In politics, it is often true that—
If you’re not satisfied with anything less than perfection, you might forfeit the lesser good.
But we need to remember it also is true that—
The lesser evil is the enemy of the good.
If you’re always willing to accept the lesser evil, you will never get anything good.
Small gains, reiterated enough times, may bring you to the greater good you are seeking.
Lesser evils, reiterated enough times, will surely bring you to the greater evil you are trying to escape.