Your rhetorical question is irrelevant.
We can't compare ourselves to the Buddha in this instance. While he did not have a shrine, he was the embodiment of the highest human spiritual ideal. Except for the previous Buddhas, none before or since have achieved what he has achieved, the perfect Sammasambuddha. The Buddha embodied the triple gem. Since many of us live in societies far removed from the 5th Century BCE, I think it is little wonder that many people like to have a shrine in their homes to assist them with their practice of developing all the enlightenment factors not least of all saddha.
“No lists of things to be done. The day providential to itself. The hour. There is no later. This is later. All things of grace and beauty such that one holds them to one's heart have a common provenance in pain. Their birth in grief and ashes.”
- Cormac McCarthy, The Road
Learn this from the waters:
in mountain clefts and chasms,
loud gush the streamlets,
but great rivers flow silently.
- Sutta Nipata 3.725Compassionate Hands Foundation
(Buddhist aid in Myanmar) • Buddhist Global Relief