I see it all the time in computer science. People become programmers because the pay is good. But without a love for the craft, they end up either hating life or being mediocre or both. It really does help to love what you do.
But it is rare enough that it is worth pointing.
The last line of code I wrote “for fun” was in 1996. The number of things I’ve done as hobbies since then is a mile long.
Love comes and goes. Wonder is forever.