Does the disposal plug into a receptacle? If not it needs a disconnect (the switch) if wired under the NEC.
Fan plugs into a receptacle under the sink? Switch for a hood fan that is plugged in under a sink? Does the line cord for hood fan run through cabinet wall? Sounds more like it was for a dishwasher. Disconnect applies here too.
"Top"? Top half of a duplex receptacle? If that is what it is, a single duplex receptacle should have been split-wired to the 2 switches. Or two single receptacles should have been used.
Your electrical inspector would not be pleased.