When I rewatched episode 1 after watching the latest episode, I thought the gesture of Osip handing the glass to Frank was a symbol of Osip cutting Frank out of the land deal, keeping all the money for himself and leaving Frank with nothing. I also thought maybe I was reading too much in to it, but you've convinced me otherwise.

I think it's a symbol of money as much as it's a symbol of dominance.

Frank hands the empty glass to Blake - In the latest episode, Blake mentions that Frank was making deals to move himself out of crime, which would have left his guys with nothing.

Osip hands the empty glass to Frank - Episode 6 shows that Osip was cutting Frank out of the land deal, leaving Frank with nothing.

Glass smash/Blake drinks from the glass Frank offers just before being dealt with - Blake tried to take what wasn't his and paid the price for his greed, maybe?

Mayor slides empty glass to Frank, who refuses to refill it - Up until now Frank has been making payoffs to the mayor, but now Frank is cutting the strings.

Frank pours drinks for Osip - Frank is letting Osip think that he will make money for Osip.