There is a good reason for leap seconds though: They make sure that UTC (based on atomic clocks) stays in sync with the solar day. If we didn't have those, the two would slowly drift apart and we would have to introduce a bigger jump at some later point.
By why is it important that UTC stays in sync with the solar day? The drift is very small, and I see no practical application for a sync in such small amounts.
Most people's local time isn't synced with the solar time anyway (that only happens in the middle of a time zone, and only if there's no crazy stuff like DST going on).
The only people who care about that are probably the astronomy guys, and they already need to adjust their time with other stuff for most observations.
