I totally get that, because that's the reason I consistently reported zero symptoms to the Zoe study during January - we were part-furloughed, ie understaffed, flooded with work & colleague straight-up begged me to make sure I didn't take a test, as then he'd be left alone in the office. (Obviously both of us would have tested if we had the 3 official symptoms, this was just to do with reporting other symptoms to the Zoe app which I knew would trigger a test)
But now we're all back off furlough, so it wouldn't be such a disaster if people had to isolate, the people I'm talking about are managers paid a lot more than me, with more flexibility to wfh so I don't get it.
Though I guess the more you're paid, the 'worse' it would be to drop down to SSP for 10 days, if you're financially over-stretching yourself.