Definitely not. The only benefit of leap seconds is keeping UTC in sync with solar time: the sun is highest in the sky at 12:00 noon at Greenwich.
But in the modern world, synchronizing solar time and clocks to <1 minute is of no value to anyone but nostalgic astronomers.
It will take 3000 years before leap seconds add up to an hour, but most countries adjust the clocks that much every year for DST. It will take 40000 years before the usual daytime hours turn into night, and by then I hope a single planet's rotation is a historical oddity.