Keep in mind that the Tremere were born of a very hiearchal order of Mages (the Hermetic Order, to be exact). They are very dedicated to the bureaucratic system set up within the Tremere clan -- each Tremere is blood-bound to their sire to strengthen and reinforce this dedication and also bound to the original seven that founded the clan under Tremere himself.
In addition, Tremere are not whores. They are occulstists, scholars, and researchers, always seeking supreme knowledge and power (both within the clan and for the clan as a whole). A whore would be too busy whoring to be able to accomplish any real Thaumaturgical research.
As was said above, a Tremere would not simply Embrace and leave. To give out the secret of Thaumaturgy (a thing that they guard jealously, and still depise Goratrix for giving to the Sabbat -- though this is centuries after the DA setting) to someone and effectively render them a Caitiff would result in (if they actually bothered with going through the pipelines) a request to the prince for the right to destroy both you and your sire.
A Tremere being allowed an Elysium is not going to happen in Dark Ages. At all. Most vampires despise, look down upon, and spit on the Tremere. The few that do associate with them do so in secret -- being associated with the Tremere is tantamount to political suicide, and you're lucky if you don't end up kidnapped and staked outside for the sun to take you.
In addition, a Tremere's sire would never accept being placed within servitude below his/her childe, unless he/she was ordered or demoted by his/her superiors.
You need to realize that, in the eyes of most Cainites, you are the scum of the earth, just above the Baali, and a few steps beneath the Caitiff. The Tremere clan was not founded by another vampire. It was founded by mortal men who kidnapped vampires, drained them of their vitae, and mixed a concoction that gave them the vampiric life. The Tzimisce hate you because Tremere and his seven lieutenants kidnapped some Tzimisce for their concoction. The Gangrel hate you because the Tremere have kidnapped Gangrel for their experiments to create the gargoyles. The Salubri fear and hate you because Tremere killed their sire, and your entire clan is out to wipe them all out. Friends of the Salubri despise you because you're wiping out the Salubri.
the idiot is the person who follows the idiot and your not following me your insulting me your following the path of a idiot so that makes you the idiot - LC Tusken