Thanks! 

Well, the way I read that, it's more 算得上 rather than just 得上. 

算 - to be regarded as. 
得 - word linking 算to上. 
And then 上 to go up, to be raised above. 

So this means "to be considered as having been raised into  [the position of loyal councillors]". 

If you google this phrase, you'll see that it's almost always used when someone is considered as having moved up in the world. 算得上an A-list actress. 算得上a top-notch guru. 算得上 a god of a certain game. Etc.