devtrackers.gg
The wording (and the “implied” meaning) behind the term “trader” tells me that its not about “silver picked up from mob kills” (for which there is a leaderboard), but rather silver obtained by selling goods on the market (for which there is no leaderboard). Of course I might be overthinking and English is my 2nd language, I might be getting lost in translation.
But IMHO the “trader statue” is the only one that does not have a leaderboard (the total PVE fame one and the gatherin one - do have a leaderboard)
The "trader statue" will be given out depending on the amount of silver on your account which means it doesn't matter whether you picked that up, made it through the market place or got it from another player.