Why is Jesus so reluctant to heal physical disabilities? (Mark 1:44, 7:36, 8:26 etc.)

 Wherever Jesus goes people bring him those in need of physical healing. Again and again Jesus tries to to balance the needs of the individual and heals them of their physical ailments while almost always telling them not to make a big thing of it. Jesus tries to keep miracles from being a focus of his work. Why?

One of Jesus's early miracles in Mark is the "Healing and Forgiving(sic) a Paralytic" (2:1-12). It's ironic that even in Bible translations, the heading added to this section in Mark's Gospel, so often, the healing comes first or alone!

1. NET: Healing and Forgiving a Paralytic
2. NRSVA: Jesus Heals a Paralytic
3. NASB(1995): The Paralytic Healed
4. GNT: Jesus Heals a Paralyzed Man
5. ESV: Jesus Heals a Paralytic

Only a few have it the right way round:

1. NIV: Jesus Forgives and Heals a Paralyzed Man
2. HCSB: The Son of Man Forgives and Heals
3. NKJV: 

The importance of this is that Jesus knows that we ALL are in need of healing. We so often focus on the obvious in this case those who have physical disabilities or needs but forget that we are all equally disabled in our attitudes and beliefs, our very core (heart) is in desperate need of healing.

As Jesus says in Mark 7:20-23: “What comes out of a person defiles him. For from within, out of the human heart, come evil ideas, sexual immorality, theft, murder, adultery, greed, evil, deceit, debauchery, envy, slander, pride, and folly. All these evils come from within and defile a person.” (NET)

The Women Syro-Phoenician Woman & Jesus (Mark 7:24-30/Matthew 15:21–28) - a dog or a puppy?

  In Greek, Polish & French the words used "... “lap dogs, house dogs,” as opposed to dogs on the street. The diminutive form originally referred to puppies or little dogs, then to house pets. In some Hellenistic uses κυνάριον (kunarion) simply means “dog.”sn The term dogs does not refer to wild dogs (scavenging animals roaming around the countryside) in this context, but to small dogs taken in as house pets. It is thus not a derogatory term per se, but is instead intended by Jesus to indicate the privileged position of the Jews (especially his disciples) as the initial recipients of Jesus’ ministry. The woman’s response of faith and her willingness to accept whatever Jesus would offer pleased him to such an extent that he granted her request. This is the only miracle mentioned in Mark that Jesus performed at a distance without ever having seen the afflicted person, or issuing some sort of audible command." NET Bible (footnote to v27). This is clearly reinforced by the woman's reply describing these "little dogs" (Greek & French) as being with children. You don't put wild, or even guard, dogs in a room with children!