"Making sense" is probably a habit, but all the units in Si are made so they are easy to convert to and from. Temperature included. So there's practicality tied to it. Just like 1l of water is also 1kg of water, which is also 1000cm³ of water. Same thing goes with temperature where Celsius is tied to transition states of the water, 0° for freezing, 100°C for boiling/gas. But it's not as tightly related as other units and even more rarely used for conversion. For us in the Si world it makes sense because everything is in scales of 100 or 1000, with definite start and end.