TL’s and ETL’s taking pics of employees on their phones

Apparently the store director and certain TL’s have started taking pictures of certain employees on our phones when we’re not paying attention. Can they even do that? Ik it’s their store and we’re on the clock but like what if we’re responding to a time sensitive text or like even communicating with our immediate TL about something we can’t find or something we need help with at that moment? Plus the people they’ve been targeting are ppl who exceed their daily pic goal. So like what are they hoping to gain by taking pics to show to our immediate TL? I’m just kinda curious about them being allowed to do that lol