Yes, I went through the same but found out that the list ignores the delegations given out to the other community members. For example, let us take an example of @proofofbrainio. In his case, the liquid balance is 9381, he has staked 88968 and he has delegated out 33882. So ideally the balance should have been 9381+88968-33882 = 64467. However, the richlist provides the balance of 30585. Hence I felt it is necessary to calculate the same manually and arrange it to get the exact ranking after considering all the parameters.